Who We Are

Why Gurr Johns

With an independent spirit and global perspective, Gurr Johns has a proud tradition of giving leading professional insight into the art market and for developing longstanding relationships with art collectors.  Since 1914, our reputation has been built on the values of connoisseurship, discretion, and commercial transparency.

We employ an experienced college of professionals across our offices in London, New York, Paris, Los Angeles, Delhi, and Hong Kong. Our team is recognised for its strength of client service, market experience, and negotiation know-how, and for always being led first and foremost by our clients’ interests.

Social Responsibility

Gurr Johns believes operating as a responsible business brings benefits to our enterprise, our people, our clients, and the broader cultural community.

Each year we sponsor educational arts platforms at a public institution.  We are delighted to continue our support and partnership with Pallant House Gallery in the South of England.

Gurr Johns are also pleased to support the Holburne Museum, Bath, and are sponsors of the 2025 exhibition, Turner and his Contemporaries.

Our People

Leadership
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Harry Smith
Executive Chairman
London
ukadvisory@gurrjohns.com

Harry has over 40 years’ experience in all areas of the art world, having acquired Gurr Johns in the mid 1980’s after a career at Christie’s and as an independent advisor. A specialist in Impressionist and Modern Art, Harry advises collectors on the sale and purchase of works of art and has coordinated a number of major valuations, including the Sara Lee Millennium Gift, and the valuation for The United Nations of the losses sustained as a consequence of the Iraqi invasion of Kuwait. He is a leading expert witness in art market litigation, and is certified in the Uniform Standards of Professional Appraisal Practice (USPAP).

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Stephan Ludwig
Group Co-CEO
London
sludwig@gurrjohns.com

Stephan is a director of Gurr Johns International and CEO of Gurr Johns Capital and the groups’ auctions businesses.

Stephan joined Gurr Johns with the sale of his business Forum Auctions to the group’s holding company. Following a career in the structuring and management of credit and debt derivatives at Managing Director level with both Credit Suisse and Nomura, Stephan commenced his involvement in the art world with the founding of The Fine Art Auction Group in 2000. An early adopter of digital innovation in the auction industry, TFAAG became the UK’s 5th largest auction group prior to its 2012 sale to AIM listed Noble Investments. Stephan subsequently established Forum Auctions, the UK’s leading specialist auctions business for works on paper.

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Christopher Gaillard
Deputy Chairman
New York
cgaillard@gurrjohns.com

Christopher Gaillard, Deputy Chairman and Fine Art Appraiser and Adviser, is Gurr Johns’ chief adviser and appraiser, specializing in contemporary art. Christopher provides appraisals for estate tax, charitable donation, and insurance purposes and advises private clients on acquiring and deaccessioning works of art. Before working at Gurr Johns, Christopher spent nine years as the Vice President and Director of Contemporary Prints at Sotheby’s, where he actively solicited consignments for semi-annual print auctions totaling $7-10 million each season. From 1993 – 1999, Christopher served as Vice President of the Print Department at Christie’s, where he secured consignments of Old Master, Modern and Contemporary Prints for semi-annual auctions and appraised prints for insurance, fair market and estate tax purposes. He has been a member of the International Print Center of New York since 2002 and was a member of the Board Momenta Art from 2001 – 2010. Christopher received his Bachelor of Art in Art History from Colby College in 1990 and his appraisals are compliant with the Uniform Standards of Professional Appraisal Practice (USPAP).

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Anika Guntrum
Managing Director, Europe
Paris
aguntrum@gurrjohns.com

A graduate in Arts History from Mills College, CA, Anika began her career with Christie’s New York in 1996 and relocated to Paris in 2002 to inaugurate the Christie’s Impressionist and Modern Art sales program in France. Vice-president of Christie’s France and International Director of Impressionist and Modern Art, she contributed to the phenomenal development of Christie’s in France.

After 28 years with Christie’s, Anika has joined Gurr Johns as Managing Director of the European operations, founding the office in Paris. A specialist in Impressionist and Modern Art by training, Anika advises collectors on the sale and purchase of works of art across categories. In her short time with the
firm, she has already advised on numerous private sale and auction acquisitions for her clientèle.

Whether it is with buying or selling, Anika’s deep experience in the auction market makes her ideally placed to accompany private and institutional clients in navigating the complexities of the art market
today.

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Charlie Horne
President
New York
chorne@gurrjohns.com

Charlie Horne, President of Gurr Johns, has a diverse senior management background specializing in fast developing companies, primarily in specialized business services. In 2010 Charlie was recruited into Philips de Pury by the company’s Chairman, CFO and President to create a corporate infrastructure and stable environment for the company’s headquarters in New York and London. He guided the auction house through one of the largest downturns in the art market and helped to prepare and participate in the sale of the company to the Russian luxury holding company, Mercury Group. From 2003 – 2008 Charlie spent five years growing a small business service company into a major regional player in the furnished apartment business space. This was highlighted by growth into three new markets and acquisition of major clients such as Goldman Sachs and Morgan Stanley. From 1999 – 2002 Charlie worked at Regus Business Centre, the largest global provider of furnished offices, where he quickly rose to Area Director of Greater China, a key region in their global growth. Earlier in his career, he was the New York Specialty Sales Manager at Starbucks, where he played a key role in their global partnership with Barnes & Noble and Delta Airlines. Charlie received his Bachelor of Art from St. Mary’s College in 1989.

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Guy Vaissiere
Director, Valuations & Fiduciary Services, Europe
London
valuations@gurrjohns.com

Guy Vaissiere joined Gurr Johns mid 2022.  He has over 25 years of experience in the art market in senior leadership roles across auction house, galleries, private clients and art finance, operating across all sectors from Old Masters to Contemporary.

Before joining Gurr Johns, Guy served as Director of Art Finance at The Fine Art Group in a role that spanned business development and portfolio management and has held senior sales roles in commercial fine & decorative art galleries and an art fair.  Guy began his career in business management roles at Sotheby’s and Phillips.

Art Advisory
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Harry Smith
Executive Chairman
London
ukadvisory@gurrjohns.com

Harry has over 40 years’ experience in all areas of the art world, having acquired Gurr Johns in the mid 1980’s after a career at Christie’s and as an independent advisor. A specialist in Impressionist and Modern Art, Harry advises collectors on the sale and purchase of works of art and has coordinated a number of major valuations, including the Sara Lee Millennium Gift, and the valuation for The United Nations of the losses sustained as a consequence of the Iraqi invasion of Kuwait. He is a leading expert witness in art market litigation, and is certified in the Uniform Standards of Professional Appraisal Practice (USPAP).

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Diane Abela
Director, Middle East
London
ukadvisory@gurrjohns.com

Diane is Gurr Johns’ Director for the Middle East. She works with both private and institutional clients in the region advising on acquisitions and sales, valuations and collection management.  Among recent projects, Diane devised and implemented an Arts Management course in partnership with the Ecole Superieure des Affaires (ESA Business School) in Beirut and London, and co-organised an international exhibition in conjunction with Ai WeiWei in Baalbek, Lebanon – a UNESCO protected site.

Diane joined the company in 2012. She is an ambassador of the World Land Trust and a board member of the Association for the Promotion and Exhibition of the Arts in Lebanon (APEAL). She has an MSc in Insurance and Risk Management, is a Chartered Insurer (CI), and has an Art Business diploma.

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Mark Adams
Senior Art Advisor
London
ukadvisory@gurrjohns.com

Mark Adams joined Gurr Johns in February 2020 and has been a trusted partner for museums and private art collectors for over thirty years.

Mark’s expertise lies in European Impressionism and 20th Century art, and particularly in American art. He holds an MA in History of Art from Corpus Christi College, Cambridge and joined Sotheby’s in 1989 as a specialist in 20th century British Art, where he built a reputation as an innovator, founding the Irish sale. In 2000 Mark joined Agnew’s as director of contemporary art, since when he has worked as an independent advisor for the almost two decades, serving institutions, family offices and private collectors in Europe and the US.

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Jillian Beck
Vice President, Senior Jewelry Specialist
New York
jbeck@gurrjohns.com

Jillian Beck joined Gurr Johns in November 2022 as Vice President, Senior Jewelry Specialist, bringing more than 25 years’ experience in the jewelry industry. She provides appraisals for the purposes of estate and tax planning, charitable donations, insurance coverage and claims, family division, and loan collateral, in conjunction with advising clients on the private sale of fine jewelry, gemstones, and timepieces.

Jillian began her career in antique and estate jewelry before transitioning to retail, and eventually the consulting sector. She spent 9 years heading the appraisal department of a prominent New Jersey based fine jewelry retailer, gaining extensive experience appraising contemporary jewelry, including designer, important diamond, and fine colored gemstone pieces. She assisted the production department in the acquisition of gemstones and worked closely with various craftsman and suppliers to create custom jewelry. Jillian was then employed by the retailer and collateral lender Suttons & Robertsons, in New York, as assistant manager and head jewelry appraiser, before founding her own jewelry appraisal and consulting business, where she spent the last eight years. During this time she consulted for both private clients and appraisal firms, including Gurr Johns, on the appraisal and/or advisement of numerous important jewelry collections.

Jillian completed her Graduate Gemologist degree from the Gemological Institute of America and received a BS in Business Administration from Felician University. She is a member of the National Association of Jewelry Appraisers (NAJA) and a member of the American Society of Jewelry Historians (ASJH). Jillian’s appraisals are compliant with the Uniform Standards of Professional Practice (USPAP).

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Lilly Dai
Business Development Director, Asia
London / Hong Kong
ldai@gurrjohns.com

Lilly Dai is Business Development Director for Gurr Johns in Asia. She is responsible for promoting Gurr Johns across China and South East Asia, ensuring that both private art collectors and institutional clients have the greatest and most seamless possible access to the company’s full suite of art advisory services, including brokerage, valuations, collection management, and art finance.


A native Mandarin speaker, she divides her time between London, Greater China and South East Asia. Prior to joining Gurr Johns in 2021, Lilly spent the majority of her professional career in the art world most recently working for an advisory business in London. She has a BSc and MSc in Urban Design from University College London and a semester diploma in the History of Decorative Arts from Sotheby’s Institute of Art.

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Sarah Dalrymple
Advisor Associate
New York
usadvisory@gurrjohns.com

Prior to joining the Gurr Johns team, Sarah worked for both galleries and auction houses in the tristate area.  Most recently she managed all incoming valuation inquiries for an online art auction platform.  There she gained experience cataloguing and researching works of art for auction while also co-managing their client services team.  Sarah obtained her MA in History of Art and the Art Market from Christie’s Education, New York, and her BA in Art History from Drew University.

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Alixe Dauger (du Cluzeau)
Private Sales Cataloguer – Research Manager, Europe
Paris
aducluzeau@gurrjohns.com

Graduated in Art History and English from the Institut Catholique de Paris and the Sorbonne Paris 1, Alixe also holds a master’s degree from the Institut d’Études Supérieures des Arts (IESA). She gained valuable experience through internships with experts and renowned auction houses.

After a year as a Judicial Clerk at Farrando et Associés, Alixe joined Christie’s as Coordinator of the Impressionist and Modern art Department where, for two and a half years, she managed prestigious sales such as the 20th/21st week in October, the Matisse and Givenchy Collections in 2022 and the Samuel Josefowitz Collection in October 2023.

These rich and diverse experiences have enabled her to develop strong skills in researching, writing, and works analysis, as well as in project management. She joined Gurr Johns as Office Director in July 2024.

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Tudor Davies
Director Advisory, Europe
Paris
tdavies@gurrjohns.com

After graduating with his law degree, Tudor spent twenty years with Christie’s working out of London, New York and Paris. As Head of Department for Impressionist and Modern Art in Paris Tudor introduced the innovative sale platform Paris Avant-Garde, transforming Paris from a Regional to an International sale site. Tudor managed single owner sales including The Triton Foundation Collection (2015) and The Arturo Schwarz Collection (2018); as well as the record-breaking sale of Alberto Giacometti’s Grande femme debout II in 2017. Tudor is a specialist in 20th Century Art with a proven track record in forming trusted relationships with clients and for delivering technical and strategic advice for the growth of their collections.

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Spencer Ewen
Senior Director
London
ukadvisory@gurrjohns.com

Spencer has over 30 years of experience in the art world and has acted as an advisor for a diverse range of international clients including both private collectors and institutions. He lifelong passion for culture was first inspired by his father who was an American artist. Having grown up surrounded by art, he went on to study Art History at the University of East Anglia before spending time as a post-graduate at an auction house and gaining valuable market experience at three established art dealerships. He first joined Gurr Johns in 1992 and spent almost a decade at the company before leaving to establish his own successful art advisory business. Spencer rejoined Gurr Johns in 2019, bringing invaluable experience and expertise to the firm having spent over three decades as a leading art advisor.

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Christopher Gaillard
Deputy Chairman, Chief Advisor and Appraiser (Contemporary Art)
New York
cgaillard@gurrjohns.com

Christopher Gaillard, Deputy Chairman and Fine Art Appraiser and Adviser, is Gurr Johns’ chief adviser and appraiser, specializing in contemporary art. Christopher provides appraisals for estate tax, charitable donation, and insurance purposes and advises private clients on acquiring and deaccessioning works of art. Before working at Gurr Johns, Christopher spent nine years as the Vice President and Director of Contemporary Prints at Sotheby’s, where he actively solicited consignments for semi-annual print auctions totaling $7-10 million each season. From 1993 – 1999, Christopher served as Vice President of the Print Department at Christie’s, where he secured consignments of Old Master, Modern and Contemporary Prints for semi-annual auctions and appraised prints for insurance, fair market and estate tax purposes. He has been a member of the International Print Center of New York since 2002 and was a member of the Board Momenta Art from 2001 – 2010. Christopher received his Bachelor of Art in Art History from Colby College in 1990 and his appraisals are compliant with the Uniform Standards of Professional Appraisal Practice (USPAP).

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Anika Guntrum
Managing Director, Europe
Paris
aguntrum@gurrjohns.com

A graduate in Arts History from Mills College, CA, Anika began her career with Christie’s New York in 1996 and relocated to Paris in 2002 to inaugurate the Christie’s Impressionist and Modern Art sales program in France. Vice-president of Christie’s France and International Director of Impressionist and Modern Art, she contributed to the phenomenal development of Christie’s in France.

After 28 years with Christie’s, Anika has joined Gurr Johns as Managing Director of the European operations, founding the office in Paris. A specialist in Impressionist and Modern Art by training, Anika advises collectors on the sale and purchase of works of art across categories. In her short time with the
firm, she has already advised on numerous private sale and auction acquisitions for her clientèle.

Whether it is with buying or selling, Anika’s deep experience in the auction market makes her ideally placed to accompany private and institutional clients in navigating the complexities of the art market
today.

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Alice Hastie Smith
Advisory Assistant
London
ahastiesmith@gurrjohns.com
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Nick Holmes
Consultant, Modern European and British Art
London
ukadvisory@gurrjohns.com

Nick Holmes joined Gurr Johns as a Consultant in October 2021 and brings over thirty years’ experience in the auction and art advisory business.  His expertise lies in Modern European art, with a particular focus on Modern British.

Nick has a degree in Business Studies and is a Post Graduate of Christie’s Fine Art Course.

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Honor Horswell
Business Development and Advisory Executive
London
hhorswell@gurrjohns.com
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Timothy Malyk
Director, Art Advisory
New York
tmalyk@gurrjohns.com

Artworld professional with 30 years of international experience, Tim brings with him a wealth of knowledge spanning both the commercial and institutional art worlds.  Beginning his career as a collection manager for extensive private collection, he went on to study architecture, art history, and sculpture.  His career led him into the auction world where he went on to hold several senior-level positions as an expert in Modern, Post War, and Contemporary Art.  He developed and managed several auction categories as well as high profile single-owner sales.

His work with artists, studios, and collectors has given him deep insight into both the secondary and primary markets. Tim’s entrepreneurial spirit led him to explore the intersection between art and technology leading his being a core member of the development team for multiple online platforms servicing the Fine Art community.  Across these roles, he has consistently balanced strong curatorial instincts with strategic business oversight and long-term client development.

Beyond the commercial sector, Tim has been active with philanthropic and charitable organizations as well as developing entertainment partnerships. Since 2023, he has had a management role at the Bridgehampton Art Museum, overseeing collection management, archive oversight, donor development, and curating exhibitions. Simultaneously he has been running his private Art Consultancy business.

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Jessica Manchester
Senior Director, Fine Art
New York
jmanchester@gurrjohns.com

Based in New York, Jessica brings over a decade of experience in Post-War & Contemporary Art sales and market expertise. As a Director with Gurr Johns Art Advisory, Jessica works to establish new clients and build upon existing client’s collections with focus on advising key acquisitions.

Prior to joining Gurr Johns, Jessica spent six years at Sotheby’s in the Contemporary Art Department and served as a Director in Private Sales. In addition to private sales, she secured consignments for the annual Contemporary sales, Impressionist & Modern, Prints and Photography auctions at Sotheby’s New York, London, Paris and Hong Kong locations. As a Specialist in Contemporary Art, Jessica worked closely with the with Valuations team gathering robust experience in appraisals for insurance, auction, fair market and estate purposes and is compliant with the Uniform Standards of Professional Appraisal Practice (USPAP). Prior to Sotheby’s, Jessica worked at David Zwirner Gallery for three years during Zwirner’s global expansion.

Jessica attended the University of Massachusetts Amherst where she received a joint Bachelor’s Degree in Art History and Communications.

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Anthony McNerney
Director, Contemporary Art
London
valuations@gurrjohns.com

Tony joined Gurr Johns in 2013 bringing over 20 years of expertise in the contemporary art world. He started his career at Christie’s where he rose through the ranks to become Director and Head of the Post-War and Contemporary Art departments. He subsequently held senior roles in both the auction and gallery sectors, including Director of Contemporary Art at both Phillips de Pury and Bonham’s, Director of Haunch of Venison gallery and Managing Director of Ben Brown Fine Arts.

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Sophie Samuelson
Collection Manager, Europe
London
ukadvisory@gurrjohns.com

Sophie advises and supports our clients with all curatorial aspects of their fine art and furniture collections. With a decade of experience in the art market, she provides a bespoke approach and draws upon her network of specialist suppliers and services to ensure that our collection management and art advisory services are delivered to exemplary standards.

Sophie was formerly an Associate Director at a London-based art advisory firm where, amongst other achievements, she spent 6 years managing high-net-worth-individuals’ private collections. Most recently she acted as an art and interiors advisor to a prominent private collector, managing and curating their international collection.

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Surath Singh
Business Head
India
india@gurrjohns.com

Surath joined Gurr Johns in 2016 bringing with him over 15 years of experience working with art, luxury and lifestyle brands in India. Prior to joining Gurr Johns, Surath had worked with Religare Art for 6 years as Head of Business Development in India. He was instrumental in setting up the Art Advisory business for his previous organisation and has been advising art collectors in building up their portfolio of Modern and Contemporary Indian Art. Besides art, Surath has spent considerable time of his career developing businesses for some of the leading European Luxury brands in India.

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Susan Thornton
Jewelry Advisory
New York
sthornton@gurrjohns.com

Susan began her jewelry career as a designer in London, where her work earned recognition in the top fashion magazines. Her fascination with gemstones led her to become a certified gemologist, shifting her focus from design to jewelry appraisal and valuation, in which she now has over 15 years of expertise. She has worked with some of the nation’s leading independent jewelers, gaining extensive experience in production and manufacturing, as well as estate jewelry authentication. Alongside her work in the jewelry trade, Susan drew upon her years in radio broadcasting to launch a podcast exploring the interconnectedness of gemstones to the broader world around us. She joined Gurr Johns in 2024.

Valuations & Appraisals
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Elle Arscott
Art Collections Systems Manager
London
earscott@gurrjohns.com

Elle joined Gurr Johns in December 2021.  She is responsible for managing the revaluation process through Gurr Johns’ bespoke Annual Updating Service (AUS) and oversees our specialised art collection management systems on behalf of institutions, trusts, estates and private collections.

Prior to joining Gurr Johns Elle worked at the Royal Society of Sculptors as its Membership Manager and also brings extensive experience in marketing roles.  Elle has an MA in Heritage Management from Athens University of Economics & Business and an MA in History of Art and Music from the University of Edinburgh.

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Jillian Beck
Vice President, Senior Jewelry Specialist
New York
jbeck@gurrjohns.com

Jillian Beck joined Gurr Johns in November 2022 as Vice President, Senior Jewelry Specialist, bringing more than 25 years’ experience in the jewelry industry. She provides appraisals for the purposes of estate and tax planning, charitable donations, insurance coverage and claims, family division, and loan collateral, in conjunction with advising clients on the private sale of fine jewelry, gemstones, and timepieces.

Jillian began her career in antique and estate jewelry before transitioning to retail, and eventually the consulting sector. She spent 9 years heading the appraisal department of a prominent New Jersey based fine jewelry retailer, gaining extensive experience appraising contemporary jewelry, including designer, important diamond, and fine colored gemstone pieces. She assisted the production department in the acquisition of gemstones and worked closely with various craftsman and suppliers to create custom jewelry. Jillian was then employed by the retailer and collateral lender Suttons & Robertsons, in New York, as assistant manager and head jewelry appraiser, before founding her own jewelry appraisal and consulting business, where she spent the last eight years. During this time she consulted for both private clients and appraisal firms, including Gurr Johns, on the appraisal and/or advisement of numerous important jewelry collections.

Jillian completed her Graduate Gemologist degree from the Gemological Institute of America and received a BS in Business Administration from Felician University. She is a member of the National Association of Jewelry Appraisers (NAJA) and a member of the American Society of Jewelry Historians (ASJH). Jillian’s appraisals are compliant with the Uniform Standards of Professional Practice (USPAP).

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Rufus Bird
Consultant
London
rbird@gurrjohns.com

Rufus brings 25 years’ experience as a leading specialist in the area of Heritage Collections and Decorative Art. Following a 13-year career in the Decorative art department at Christie’s, he was appointed Deputy Surveyor of the Queen’s Works of Art in 2010 and served as Surveyor of the Queen’s Works of Art from 2018 to 2021. Most recently Rufus has acted as a consultant on Furniture and Historic Interiors to the Royal Collection Trust.

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William Boize
Senior General Valuer
London
valuations@gurrjohns.com

With over 30 years’ experience as a valuer, William joined Gurr Johns in 2000. He was previously a Senior Valuer and Associate Director at Phillips International Fine Art Auctioneers both in the Midlands and the South West, after training with Andrew Grant valuers and auctioneers in Worcester. He has also worked in a family firm of antique dealers where he gained a valuable insight into the retail trade.

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Simon Cooper
Senior General Valuer
London
valuations@gurrjohns.com

Simon joined Gurr Johns in early 2014 having previously worked for 13 years at Rosebery’s Auctioneers & Valuers, where he was a Director from 2007. He began his career as an auctioneer and valuer for one of Scotland’s leading provincial auction houses, Thomson Roddick & Laurie, and has worked as an antiques expert for an online antiques website, and as a consultant in various roles including for George Bailey of Sotheby’s at The Auction Room. In 1994 he completed both the Fine Art & Chattels course at Southampton and The National Association of Goldsmiths’ Professional Jewellers’ Diploma, and in 1996 joined the ISVA now incorporated into the RICS. Simon has a broad range of knowledge, and over 20 years’ experience in the fine art world.

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Samantha Dunn-Davies
General Valuer and Jewellery and Watches Specialist
London
valuations@gurrjohns.com

Sam joined Gurr Johns in 2022.  She has over twenty years’ experience working in auction houses and art finance as a general valuer in fine art, furniture and decorative arts, together with a specialism in jewellery and watches.

With a Bachelor Degree in History of Art and Design from the University of Northumbria and a Post Graduate Diploma in Decorative Art from Glasgow University, Sam is a member of the Royal Institute of Chartered Surveyors, a fellow of the Gemmological Association of Great Britain and is fully qualified as a gemmologist and diamond grader.

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Sonia Fazlali-Zadeh
Director, Jewellery & Watches
London
valuations@gurrjohns.com

Sonia joined Gurr Johns in 2018. She has more than a decade of experience in the jewellery industry having started her career as a jewellery designer before moving on to work in retail and latterly focusing on valuations of fine and rare jewels. During this time, she has developed an extensive network of dealers, collectors, specialists and master craftsmen. She is a member of the Institute of Registered Valuers, a fellow of the Gemmological Association and is fully qualified as a gemmologist, diamond and pearl grader, having achieved distinction in her FGA and graduate diamond course with the Gem-A and GIA respectively.

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Athénais Gaucher
Valuations Cataloguer, Europe
Paris
agaucher@gurrjohns.com
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Ana Gutierrez-Folch
Director of Appraisals
New York
afolch@gurrjohns.com

As the Director of Appraisals, Ana leads Gurr Johns’ appraisal logistics team, overseeing the coordination and deliverables of each new client project from intake through to the execution of a completed report. She also administers Gurr Johns’ extensive network of global art consultants. Prior to joining Gurr Johns, Ana worked at Mallett Antiques, where she managed the New York gallery operation. While at Mallett, she oversaw multiple gallery exhibitions, as well as the gallery’s participation in international fairs such as The Winter Show, TEFAF Maastricht, and Masterpiece London. Ana obtained her BA from Harvard University, where she completed a joint degree in English and American Literature, and in History of Art and Architecture. She received her MA in Decorative Arts from the Bard Graduate Center.

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Timothy Hamilton
Generalist Appraiser
New York
eastcoastappraisals@gurrjohns.com

Tim joined Gurr Johns in 2010 and specializes in the Fine and Decorative Arts. He has 25 years’ experience gained with Sotheby’s New York, where he previously worked in General Furniture and Decorative Arts auctions, in Single-Owner Sales, and as an Appraiser in the Trusts, Estates and Appraisals Department. He has a BA from Williams College and is a graduate of the Sotheby’s Institute American Arts Course in New York. Timothy Hamilton’s appraisals are compliant with the Uniform Standards of Professional Appraisal Practice (USPAP).

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Claire-Louise John
Client Relations Manager, Valuations Department
London
valuations@gurrjohns.com

Claire-Louise joined Gurr Johns at the start of 2010. Her ongoing focus is client liaison and business development within the Valuations Department, and in 2014 she was also responsible for Gurr John’s centenary rebrand. An experienced communications specialist, Claire-Louise began her career in business and financial public relations in New York. She has also worked in editorial and publishing. She has a background in arts administration and events, most notably with the Covent Garden Festival of Opera and Music Theatre, an interest now expressed in her role as a Trustee of FitzFest classical music and cultural festival in Fitzrovia. She is an Honours graduate of Aberdeen University and has a Masters degree from the University of London.

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Lauren Kantor
Director of Business Development, West Coast
Los Angeles
lkantor@gurrjohns.com

Based in Los Angeles, Lauren leads business development on the West Coast. She facilitates the appraisal of fine art, decorative art, jewelry, watches, and other tangible personal property for the purpose of estate planning, estate tax, divorce, estate litigation, charitable giving, insurance and using art as collateral. She also works with fiduciaries and private clients to strategically offer single works or an entire collection in the market.

Prior to joining Gurr Johns in 2016, Lauren had over 15 years of experience in the international auction business working in London, Toronto, New York and Los Angeles. Lauren was most recently the Head of Valuations at Sotheby’s in New York. She previously served as Director of Trusts & Estates at Bonhams and in business development at Christie’s.

Lauren holds an MA in Art Business from Sotheby’s Institute in London.

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Fiona Lamb
Appraiser of Fine Art
New York
flamb@gurrjohns.com

Fiona Lamb, Appraiser of Fine Art, is responsible for providing appraisals for estate tax, insurance, charitable donation, and gift tax purposes. She specializes in modern, post-war and contemporary art. Early in her tenure at Gurr Johns, first as a Research Associate, then a Junior Appraiser, she provided executive and research support to the Deputy Chairman and larger team of Senior Specialists. In her current role as an Appraiser of Fine Art, Fiona assists with numerous prominent fine art collections and provides expert valuations that guide clients in making informed decisions regarding acquisitions, sales, and the preservation of their artworks.

Prior to joining Gurr Johns, Fiona acquired nearly ten years of experience at various fine art museums and an art consulting firm and gallery space in the Northern and Southern California regions. She held curatorial and research-oriented roles as well as internships at notable institutions such as the Bowers Museum, Sonoma Valley Museum of Art, and Mission of San Juan Capistrano, working in their respective permanent and special collections.

Fiona holds an MA in Art Business from Sotheby’s Institute of Art and Claremont Graduate University, Los Angeles, and a BA in Art History from California State University, Fullerton. Fiona’s appraisals are compliant with the Uniform Standards of Professional Appraisal Practice (USPAP).

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Archie Leschallas
Contemporary Art Valuer
London
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Jessica Manchester
Senior Director, Fine Art
New York
jmanchester@gurrjohns.com

Based in New York, Jessica brings over a decade of experience in Post-War & Contemporary Art sales and market expertise. As a Director with Gurr Johns Art Advisory, Jessica works to establish new clients and build upon existing client’s collections with focus on advising key acquisitions.

Prior to joining Gurr Johns, Jessica spent six years at Sotheby’s in the Contemporary Art Department and served as a Director in Private Sales. In addition to private sales, she secured consignments for the annual Contemporary sales, Impressionist & Modern, Prints and Photography auctions at Sotheby’s New York, London, Paris and Hong Kong locations. As a Specialist in Contemporary Art, Jessica worked closely with the with Valuations team gathering robust experience in appraisals for insurance, auction, fair market and estate purposes and is compliant with the Uniform Standards of Professional Appraisal Practice (USPAP). Prior to Sotheby’s, Jessica worked at David Zwirner Gallery for three years during Zwirner’s global expansion.

Jessica attended the University of Massachusetts Amherst where she received a joint Bachelor’s Degree in Art History and Communications.

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Anthony McNerney
Director, Contemporary Art
London
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Darsi Monaco
Director of Trusts & Estates
New York
dmonaco@gurrjohns.com

As the Director of Trusts and Estates, Darsi assists fiduciaries and private clients with the valuation and disposition of art and tangible personal property for estate planning, estate tax, divorce, estate litigation, charitable giving and using art as collateral. Darsi advises on IRS and USPAP rules, and best practices for valuations in complex art–related transactions and litigation.

Prior to joining Gurr Johns, Darsi worked in elder law, where she focused on the unique estate planning needs of artists, and developed a manual on estate planning for elder artists in New York. Before pursuing a law degree, she worked in art and film as a producer and production designer for films premiering at international film festivals and for art gallery installation.

Darsi obtained her BA from Bard College, and JD from the City University of New York School of Law, and is admitted to practice in New York.  She is a member of the Bard Center for Curatorial Studies Arts Council, the Planned Giving Advisory Council for the New York Historical Society, and the Estate and Gift Taxation Committee of the New York City Bar Association.

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Jane Oakley
Senior Fine Art Valuer
London
valuations@gurrjohns.com

Jane joined Gurr Johns in 2023 with 25 years experience in the auction world as a picture specialist and auctioneer. She started her career at Phillips in Leeds, before heading to London to broaden and deepen her expertise at Bonhams. She went on to become a Director and head of British & Irish Art at Christie’s South Kensington, followed by a move to Sotheby’s as a Director in the British Art Post 1850 Department, before going on to become Head of Paintings at Sworders. She has a broad knowledge of British and Continental paintings both old and new, working on a number of prestigious collection sales.

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Mark Peters
Consultant
London
valuations@gurrjohns.com

Mark joined Gurr Johns in 1990 having previously worked as a General Valuer at Sotheby’s London for almost a decade. Prior to that, Mark was with the Antiques Department at Bonhams, London, after working as a trainee at Christie’s, London. He has been a Fellow of the Royal Institution of Chartered Surveyors (FRICS) since 1996, and before it merged with RICS, an Associate of the Incorporated Society of Valuers and Auctioneers (ASVA) from 1985. He has over 30 years’ experience and specialist knowledge of jewellery, silver, furniture and porcelain.

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Nivedita Poddar
Delhi
india@gurrjohns.com

Nivedita completed her Masters in Modern and Contemporary Art at Christie’s Education, London. She has previously worked at Christie’s London, Experimenter Gallery, Kolkata and Frieze London.

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Anne-Marie Shaw
Valuations
London
valuations@gurrjohns.com

Please contact Anne-Marie for all valuation enquiries.

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Patrick Sheehan
Director of Decorative Arts and Design, Senior Appraiser
New York
eastcoastapparaisals@gurrjohns.com

Patrick joined Gurr Johns in 2011 from the 20th Century Design Department of Sotheby’s, having previously specialized in European Furniture at Christie’s. He has a BA in Art History from the University of Florida, and an MA in Decorative Art and Design History from the Bard Graduate Center in New York City. While studying for his MA he attended a summer study program offered in conjunction with the Royal College of Art, The Victoria & Albert Museum, The Wallace Collection and Waddesdon Manor. Patrick has over 20 years’ experience as an appraiser and has a particular interest in the problematic areas of Tiffany glass, bronze and ivory sculptures, and art deco furniture. Patrick Sheehan’s appraisals are compliant with the Uniform Standards of Professional Appraisal Practice (USPAP).

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Veronique Steengracht van Oostcapelle
Director Valuations, Europe
Paris
vsteengracht@gurrjohns.com

Véronique has been a qualified auctioneer since 1990, and also holds a degree in Law and Art History from the Université Paris 1, Panthéon-Sorbonne, and a diploma in Gemmology from the Ecole du Louvre in Paris.

She began her career as a clerk to several auctioneers at the Hôtel des Ventes Drouot, before joining Tyler and Co. as an international loss adjuster, specializing in works of art and jewellery at Lloyd’s of London. From 2004 to 2009, she managed the Gurr Johns / Appap appraisal firm in Paris, with a particular focus on appraisals and valuations.

In 2017, Véronique founded her own company, SvO Fine Arts, where she has maintained first-rate appraisal services to collectors and families. Having been part of the Gurr Johns family for almost twenty years, Véronique is now Director of Appraisals for Gurr Johns Europe.

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Siobhan Tyrrell
Valuations Manager
London
valuations@gurrjohns.com

Siobhan has 30 years’ experience in the valuations world, and is a qualified diamond, pearl and coloured stone grader. Since 2003 she has been a Fellow of the Gemmological Association of Great Britain. From 2004 to 2021 Siobhan was a Senior Valuer at Gurr Johns. She then joined Dawsons Auctioneers as Head of Valuations, London, before returning to Gurr Johns as Head of Valuations, UK in 2023. Prior to that she worked for a number of UK auction rooms including Phillips, and Bonhams. Having attained a BA(Hons) in her first passion, History, she went on to become a Member of the Royal Institute of Chartered Surveyors in 1994, having achieved top marks in both years on the Southampton Fine Art & Chattels course. Since 2019 her valuation and social history knowledge have featured on the BBC Antiques Roadshow. Siobhan’s years of valuation and advisory experience are sought after by an extensive global network of clients.

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Guy Vaissiere
Director, Valuations & Fiduciary Services, Europe
London
valuations@gurrjohns.com

Guy Vaissiere joined Gurr Johns mid 2022.  He has over 25 years of experience in the art market in senior leadership roles across auction house, galleries, private clients and art finance, operating across all sectors from Old Masters to Contemporary.

Before joining Gurr Johns, Guy served as Director of Art Finance at The Fine Art Group in a role that spanned business development and portfolio management and has held senior sales roles in commercial fine & decorative art galleries and an art fair.  Guy began his career in business management roles at Sotheby’s and Phillips.

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Erin Marie Wallace
Vice President, Business Development, Southeast
Palm Beach
emwallace@gurrjohns.com

Erin Marie assists attorneys, insurance professionals, fiduciaries, and private clients to provide appraisals for fine and decorative art, furniture, jewelry, wine, collectibles, memorabilia, and general property for estate tax, divorce, charitable giving, insurance, art leasing, brokerage and loan collateral. She works with fiduciaries and private clients to strategically disperse these assets. Erin Marie also advises on current IRS guidelines and USPAP compliance.

As a former appraiser, auctioneer, and auction house CEO, Erin Marie gained extensive experience advising clients on building and dispersing collections privately, publicly and through charitable gifting. Prior to joining Gurr Johns, she was a Trusts & Estates manager and advised fiduciaries, lawyers, and private clients on selling estate collections of fine art, jewelry, and other luxury goods.

Erin Marie obtained her BFA from the University of Central Florida, her MA in Fine and Decorative Art from the University of Manchester and a second MA in Fine and Decorative Art from Sotheby’s Institute in London. She is a member of the Norton Museum of Art in West Palm Beach and the Flagler Museum in Palm Beach.

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Jessica Wessel
Director of Business Development, Northeast
New York
jwessel@gurrjohns.com

Jessica Wessel assists private collectors and institutions with the valuation and disposition of art and other tangible assets. In this role, Jessica works closely with insurance brokers and carriers, as well as private banks and family offices, to provide clients with comprehensive appraisal and collection management services.

Prior to joining Gurr Johns in 2014, Jessica practiced corporate law at Herrick Feinstein LLP, where she also advised clients on a range of transactional art law matters, including advice with respect to art funds and art loans.

Jessica received her BBA from the Stephen M. Ross School of Business at the University of Michigan and her JD from Villanova University School of Law. She is admitted to the practice of law in New York.

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Liz Winnicott
General Valuer and Jewellery and Watches Specialist
London
valuations@gurrjohns.com

Liz joined Gurr Johns in April 2023 having more than 16 years’ experience in the auction world and brings with her a wealth of knowledge of the art and antiques market, having most recently worked for several years as a Director of a London auction business.

Following an early career in accountancy and criminal intelligence, Liz decided to follow her passion for arts and antiques and joined a Midlands-based auction room as a valuer and auctioneer. She gained her RICS-accredited MA in Arts Market Appraisal with distinction from Kingston University, before going on to qualify as a gemmologist and diamond grader, again with distinction, and is a fellow of the Gemmological Association of Great Britain. Liz’s breadth of experience has led to a broad understanding of all aspects of the fine and decorative arts markets as well as her specialism in jewellery and watches.

Art Finance
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Alberto Bologna
Associate Director – Art Financing
London
alberto@gurrjohnscapital.com

Alberto joined Gurr Johns Capital in 2022 as a Credit Analyst, focusing on all aspects of the underwriting process for each transaction.

Earlier in his career he worked at Wells Fargo in London in the Capital Finance division, providing asset based lending solutions to mid-market companies in EMEA. Prior to that he interned in the Impressionist and Modern Art department of Christie’s in London.

Alberto holds a Bachelor of Business Administration from Bocconi University and a Master in Management from ESCP Europe.

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Stephan Ludwig
CEO, Gurr Johns Capital
London
sludwig@gurrjohns.com

Stephan is a director of Gurr Johns International and CEO of Gurr Johns Capital and the groups’ auctions businesses.

Stephan joined Gurr Johns with the sale of his business Forum Auctions to the group’s holding company. Following a career in the structuring and management of credit and debt derivatives at Managing Director level with both Credit Suisse and Nomura, Stephan commenced his involvement in the art world with the founding of The Fine Art Auction Group in 2000. An early adopter of digital innovation in the auction industry, TFAAG became the UK’s 5th largest auction group prior to its 2012 sale to AIM listed Noble Investments. Stephan subsequently established Forum Auctions, the UK’s leading specialist auctions business for works on paper.

Operations
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Sarah Aspin
Office Manager
London
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Tony Bellomy
Director of Operations
New York
tbellomy@gurrjohns.com

Tony joined Gurr Johns in 2012, after 6 years with storied corporate activist and art dealer, Asher Edelman. There he managed a private art gallery, a secondary market brokerage arm and budding art loan investment firm, Art Assure Ltd. During his tenure he supervised numerous gallery openings, a gallery expansion into a 5 story brownstone and managed Edelman Arts’ presence at various domestic and international art fairs. At Gurr Johns, Tony oversees day to day operations, as well as assists the President in the multifaceted aspects of business development and management of the company.

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Iain Fleming
Finance Consultant
London
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Abdul Motin
Accountant
London
Americas
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Jillian Beck
Vice President, Senior Jewelry Specialist
New York
jbeck@gurrjohns.com

Jillian Beck joined Gurr Johns in November 2022 as Vice President, Senior Jewelry Specialist, bringing more than 25 years’ experience in the jewelry industry. She provides appraisals for the purposes of estate and tax planning, charitable donations, insurance coverage and claims, family division, and loan collateral, in conjunction with advising clients on the private sale of fine jewelry, gemstones, and timepieces.

Jillian began her career in antique and estate jewelry before transitioning to retail, and eventually the consulting sector. She spent 9 years heading the appraisal department of a prominent New Jersey based fine jewelry retailer, gaining extensive experience appraising contemporary jewelry, including designer, important diamond, and fine colored gemstone pieces. She assisted the production department in the acquisition of gemstones and worked closely with various craftsman and suppliers to create custom jewelry. Jillian was then employed by the retailer and collateral lender Suttons & Robertsons, in New York, as assistant manager and head jewelry appraiser, before founding her own jewelry appraisal and consulting business, where she spent the last eight years. During this time she consulted for both private clients and appraisal firms, including Gurr Johns, on the appraisal and/or advisement of numerous important jewelry collections.

Jillian completed her Graduate Gemologist degree from the Gemological Institute of America and received a BS in Business Administration from Felician University. She is a member of the National Association of Jewelry Appraisers (NAJA) and a member of the American Society of Jewelry Historians (ASJH). Jillian’s appraisals are compliant with the Uniform Standards of Professional Practice (USPAP).

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Tony Bellomy
Director of Operations
New York
tbellomy@gurrjohns.com

Tony joined Gurr Johns in 2012, after 6 years with storied corporate activist and art dealer, Asher Edelman. There he managed a private art gallery, a secondary market brokerage arm and budding art loan investment firm, Art Assure Ltd. During his tenure he supervised numerous gallery openings, a gallery expansion into a 5 story brownstone and managed Edelman Arts’ presence at various domestic and international art fairs. At Gurr Johns, Tony oversees day to day operations, as well as assists the President in the multifaceted aspects of business development and management of the company.

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Sarah Dalrymple
Advisor Associate
New York
usadvisory@gurrjohns.com

Prior to joining the Gurr Johns team, Sarah worked for both galleries and auction houses in the tristate area.  Most recently she managed all incoming valuation inquiries for an online art auction platform.  There she gained experience cataloguing and researching works of art for auction while also co-managing their client services team.  Sarah obtained her MA in History of Art and the Art Market from Christie’s Education, New York, and her BA in Art History from Drew University.

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Christopher Gaillard
Deputy Chairman
New York
cgaillard@gurrjohns.com

Christopher Gaillard, Deputy Chairman and Fine Art Appraiser and Adviser, is Gurr Johns’ chief adviser and appraiser, specializing in contemporary art. Christopher provides appraisals for estate tax, charitable donation, and insurance purposes and advises private clients on acquiring and deaccessioning works of art. Before working at Gurr Johns, Christopher spent nine years as the Vice President and Director of Contemporary Prints at Sotheby’s, where he actively solicited consignments for semi-annual print auctions totaling $7-10 million each season. From 1993 – 1999, Christopher served as Vice President of the Print Department at Christie’s, where he secured consignments of Old Master, Modern and Contemporary Prints for semi-annual auctions and appraised prints for insurance, fair market and estate tax purposes. He has been a member of the International Print Center of New York since 2002 and was a member of the Board Momenta Art from 2001 – 2010. Christopher received his Bachelor of Art in Art History from Colby College in 1990 and his appraisals are compliant with the Uniform Standards of Professional Appraisal Practice (USPAP).

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Ana Gutierrez-Folch
Director of Appraisals
New York
afolch@gurrjohns.com

As the Director of Appraisals, Ana leads Gurr Johns’ appraisal logistics team, overseeing the coordination and deliverables of each new client project from intake through to the execution of a completed report. She also administers Gurr Johns’ extensive network of global art consultants. Prior to joining Gurr Johns, Ana worked at Mallett Antiques, where she managed the New York gallery operation. While at Mallett, she oversaw multiple gallery exhibitions, as well as the gallery’s participation in international fairs such as The Winter Show, TEFAF Maastricht, and Masterpiece London. Ana obtained her BA from Harvard University, where she completed a joint degree in English and American Literature, and in History of Art and Architecture. She received her MA in Decorative Arts from the Bard Graduate Center.

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Timothy Hamilton
Generalist Appraiser
New York
eastcoastappraisals@gurrjohns.com

Tim joined Gurr Johns in 2010 and specializes in the Fine and Decorative Arts. He has 25 years’ experience gained with Sotheby’s New York, where he previously worked in General Furniture and Decorative Arts auctions, in Single-Owner Sales, and as an Appraiser in the Trusts, Estates and Appraisals Department. He has a BA from Williams College and is a graduate of the Sotheby’s Institute American Arts Course in New York. Timothy Hamilton’s appraisals are compliant with the Uniform Standards of Professional Appraisal Practice (USPAP).

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Charlie Horne
President
New York
chorne@gurrjohns.com

Charlie Horne, President of Gurr Johns, has a diverse senior management background specializing in fast developing companies, primarily in specialized business services. In 2010 Charlie was recruited into Philips de Pury by the company’s Chairman, CFO and President to create a corporate infrastructure and stable environment for the company’s headquarters in New York and London. He guided the auction house through one of the largest downturns in the art market and helped to prepare and participate in the sale of the company to the Russian luxury holding company, Mercury Group. From 2003 – 2008 Charlie spent five years growing a small business service company into a major regional player in the furnished apartment business space. This was highlighted by growth into three new markets and acquisition of major clients such as Goldman Sachs and Morgan Stanley. From 1999 – 2002 Charlie worked at Regus Business Centre, the largest global provider of furnished offices, where he quickly rose to Area Director of Greater China, a key region in their global growth. Earlier in his career, he was the New York Specialty Sales Manager at Starbucks, where he played a key role in their global partnership with Barnes & Noble and Delta Airlines. Charlie received his Bachelor of Art from St. Mary’s College in 1989.

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Lauren Kantor
Director of Business Development, West Coast
Los Angeles
lkantor@gurrjohns.com

Based in Los Angeles, Lauren leads business development on the West Coast. She facilitates the appraisal of fine art, decorative art, jewelry, watches, and other tangible personal property for the purpose of estate planning, estate tax, divorce, estate litigation, charitable giving, insurance and using art as collateral. She also works with fiduciaries and private clients to strategically offer single works or an entire collection in the market.

Prior to joining Gurr Johns in 2016, Lauren had over 15 years of experience in the international auction business working in London, Toronto, New York and Los Angeles. Lauren was most recently the Head of Valuations at Sotheby’s in New York. She previously served as Director of Trusts & Estates at Bonhams and in business development at Christie’s.

Lauren holds an MA in Art Business from Sotheby’s Institute in London.

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Fiona Lamb
Appraiser of Fine Art
New York
flamb@gurrjohns.com

Fiona Lamb, Appraiser of Fine Art, is responsible for providing appraisals for estate tax, insurance, charitable donation, and gift tax purposes. She specializes in modern, post-war and contemporary art. Early in her tenure at Gurr Johns, first as a Research Associate, then a Junior Appraiser, she provided executive and research support to the Deputy Chairman and larger team of Senior Specialists. In her current role as an Appraiser of Fine Art, Fiona assists with numerous prominent fine art collections and provides expert valuations that guide clients in making informed decisions regarding acquisitions, sales, and the preservation of their artworks.

Prior to joining Gurr Johns, Fiona acquired nearly ten years of experience at various fine art museums and an art consulting firm and gallery space in the Northern and Southern California regions. She held curatorial and research-oriented roles as well as internships at notable institutions such as the Bowers Museum, Sonoma Valley Museum of Art, and Mission of San Juan Capistrano, working in their respective permanent and special collections.

Fiona holds an MA in Art Business from Sotheby’s Institute of Art and Claremont Graduate University, Los Angeles, and a BA in Art History from California State University, Fullerton. Fiona’s appraisals are compliant with the Uniform Standards of Professional Appraisal Practice (USPAP).

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Timothy Malyk
Director, Art Advisory
New York
tmalyk@gurrjohns.com

Artworld professional with 30 years of international experience, Tim brings with him a wealth of knowledge spanning both the commercial and institutional art worlds.  Beginning his career as a collection manager for extensive private collection, he went on to study architecture, art history, and sculpture.  His career led him into the auction world where he went on to hold several senior-level positions as an expert in Modern, Post War, and Contemporary Art.  He developed and managed several auction categories as well as high profile single-owner sales.

His work with artists, studios, and collectors has given him deep insight into both the secondary and primary markets. Tim’s entrepreneurial spirit led him to explore the intersection between art and technology leading his being a core member of the development team for multiple online platforms servicing the Fine Art community.  Across these roles, he has consistently balanced strong curatorial instincts with strategic business oversight and long-term client development.

Beyond the commercial sector, Tim has been active with philanthropic and charitable organizations as well as developing entertainment partnerships. Since 2023, he has had a management role at the Bridgehampton Art Museum, overseeing collection management, archive oversight, donor development, and curating exhibitions. Simultaneously he has been running his private Art Consultancy business.

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Jessica Manchester
Senior Director, Fine Art
New York
jmanchester@gurrjohns.com

Based in New York, Jessica brings over a decade of experience in Post-War & Contemporary Art sales and market expertise. As a Director with Gurr Johns Art Advisory, Jessica works to establish new clients and build upon existing client’s collections with focus on advising key acquisitions.

Prior to joining Gurr Johns, Jessica spent six years at Sotheby’s in the Contemporary Art Department and served as a Director in Private Sales. In addition to private sales, she secured consignments for the annual Contemporary sales, Impressionist & Modern, Prints and Photography auctions at Sotheby’s New York, London, Paris and Hong Kong locations. As a Specialist in Contemporary Art, Jessica worked closely with the with Valuations team gathering robust experience in appraisals for insurance, auction, fair market and estate purposes and is compliant with the Uniform Standards of Professional Appraisal Practice (USPAP). Prior to Sotheby’s, Jessica worked at David Zwirner Gallery for three years during Zwirner’s global expansion.

Jessica attended the University of Massachusetts Amherst where she received a joint Bachelor’s Degree in Art History and Communications.

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Darsi Monaco
Director of Trusts & Estates
New York
dmonaco@gurrjohns.com

As the Director of Trusts and Estates, Darsi assists fiduciaries and private clients with the valuation and disposition of art and tangible personal property for estate planning, estate tax, divorce, estate litigation, charitable giving and using art as collateral. Darsi advises on IRS and USPAP rules, and best practices for valuations in complex art–related transactions and litigation.

Prior to joining Gurr Johns, Darsi worked in elder law, where she focused on the unique estate planning needs of artists, and developed a manual on estate planning for elder artists in New York. Before pursuing a law degree, she worked in art and film as a producer and production designer for films premiering at international film festivals and for art gallery installation.

Darsi obtained her BA from Bard College, and JD from the City University of New York School of Law, and is admitted to practice in New York.  She is a member of the Bard Center for Curatorial Studies Arts Council, the Planned Giving Advisory Council for the New York Historical Society, and the Estate and Gift Taxation Committee of the New York City Bar Association.

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Patrick Sheehan
Director of Decorative Arts and Design, Senior Appraiser
New York
eastcoastapparaisals@gurrjohns.com

Patrick joined Gurr Johns in 2011 from the 20th Century Design Department of Sotheby’s, having previously specialized in European Furniture at Christie’s. He has a BA in Art History from the University of Florida, and an MA in Decorative Art and Design History from the Bard Graduate Center in New York City. While studying for his MA he attended a summer study program offered in conjunction with the Royal College of Art, The Victoria & Albert Museum, The Wallace Collection and Waddesdon Manor. Patrick has over 20 years’ experience as an appraiser and has a particular interest in the problematic areas of Tiffany glass, bronze and ivory sculptures, and art deco furniture. Patrick Sheehan’s appraisals are compliant with the Uniform Standards of Professional Appraisal Practice (USPAP).

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Susan Thornton
Jewelry Advisory
New York
sthornton@gurrjohns.com

Susan began her jewelry career as a designer in London, where her work earned recognition in the top fashion magazines. Her fascination with gemstones led her to become a certified gemologist, shifting her focus from design to jewelry appraisal and valuation, in which she now has over 15 years of expertise. She has worked with some of the nation’s leading independent jewelers, gaining extensive experience in production and manufacturing, as well as estate jewelry authentication. Alongside her work in the jewelry trade, Susan drew upon her years in radio broadcasting to launch a podcast exploring the interconnectedness of gemstones to the broader world around us. She joined Gurr Johns in 2024.

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Erin Marie Wallace
Vice President, Business Development, Southeast
Palm Beach
emwallace@gurrjohns.com

Erin Marie assists attorneys, insurance professionals, fiduciaries, and private clients to provide appraisals for fine and decorative art, furniture, jewelry, wine, collectibles, memorabilia, and general property for estate tax, divorce, charitable giving, insurance, art leasing, brokerage and loan collateral. She works with fiduciaries and private clients to strategically disperse these assets. Erin Marie also advises on current IRS guidelines and USPAP compliance.

As a former appraiser, auctioneer, and auction house CEO, Erin Marie gained extensive experience advising clients on building and dispersing collections privately, publicly and through charitable gifting. Prior to joining Gurr Johns, she was a Trusts & Estates manager and advised fiduciaries, lawyers, and private clients on selling estate collections of fine art, jewelry, and other luxury goods.

Erin Marie obtained her BFA from the University of Central Florida, her MA in Fine and Decorative Art from the University of Manchester and a second MA in Fine and Decorative Art from Sotheby’s Institute in London. She is a member of the Norton Museum of Art in West Palm Beach and the Flagler Museum in Palm Beach.

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Jessica Wessel
Director of Business Development, Northeast
New York
jwessel@gurrjohns.com

Jessica Wessel assists private collectors and institutions with the valuation and disposition of art and other tangible assets. In this role, Jessica works closely with insurance brokers and carriers, as well as private banks and family offices, to provide clients with comprehensive appraisal and collection management services.

Prior to joining Gurr Johns in 2014, Jessica practiced corporate law at Herrick Feinstein LLP, where she also advised clients on a range of transactional art law matters, including advice with respect to art funds and art loans.

Jessica received her BBA from the Stephen M. Ross School of Business at the University of Michigan and her JD from Villanova University School of Law. She is admitted to the practice of law in New York.

Europe & Middle East
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Harry Smith
Executive Chairman
London
ukadvisory@gurrjohns.com

Harry has over 40 years’ experience in all areas of the art world, having acquired Gurr Johns in the mid 1980’s after a career at Christie’s and as an independent advisor. A specialist in Impressionist and Modern Art, Harry advises collectors on the sale and purchase of works of art and has coordinated a number of major valuations, including the Sara Lee Millennium Gift, and the valuation for The United Nations of the losses sustained as a consequence of the Iraqi invasion of Kuwait. He is a leading expert witness in art market litigation, and is certified in the Uniform Standards of Professional Appraisal Practice (USPAP).

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Stephan Ludwig
Group Co-CEO
London
sludwig@gurrjohns.com

Stephan is a director of Gurr Johns International and CEO of Gurr Johns Capital and the groups’ auctions businesses.

Stephan joined Gurr Johns with the sale of his business Forum Auctions to the group’s holding company. Following a career in the structuring and management of credit and debt derivatives at Managing Director level with both Credit Suisse and Nomura, Stephan commenced his involvement in the art world with the founding of The Fine Art Auction Group in 2000. An early adopter of digital innovation in the auction industry, TFAAG became the UK’s 5th largest auction group prior to its 2012 sale to AIM listed Noble Investments. Stephan subsequently established Forum Auctions, the UK’s leading specialist auctions business for works on paper.

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Diane Abela
Director, Middle East
London
ukadvisory@gurrjohns.com

Diane is Gurr Johns’ Director for the Middle East. She works with both private and institutional clients in the region advising on acquisitions and sales, valuations and collection management.  Among recent projects, Diane devised and implemented an Arts Management course in partnership with the Ecole Superieure des Affaires (ESA Business School) in Beirut and London, and co-organised an international exhibition in conjunction with Ai WeiWei in Baalbek, Lebanon – a UNESCO protected site.

Diane joined the company in 2012. She is an ambassador of the World Land Trust and a board member of the Association for the Promotion and Exhibition of the Arts in Lebanon (APEAL). She has an MSc in Insurance and Risk Management, is a Chartered Insurer (CI), and has an Art Business diploma.

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Mark Adams
Senior Art Advisor
London
ukadvisory@gurrjohns.com

Mark Adams joined Gurr Johns in February 2020 and has been a trusted partner for museums and private art collectors for over thirty years.

Mark’s expertise lies in European Impressionism and 20th Century art, and particularly in American art. He holds an MA in History of Art from Corpus Christi College, Cambridge and joined Sotheby’s in 1989 as a specialist in 20th century British Art, where he built a reputation as an innovator, founding the Irish sale. In 2000 Mark joined Agnew’s as director of contemporary art, since when he has worked as an independent advisor for the almost two decades, serving institutions, family offices and private collectors in Europe and the US.

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Elle Arscott
Art Collections Systems Manager
London
earscott@gurrjohns.com

Elle joined Gurr Johns in December 2021.  She is responsible for managing the revaluation process through Gurr Johns’ bespoke Annual Updating Service (AUS) and oversees our specialised art collection management systems on behalf of institutions, trusts, estates and private collections.

Prior to joining Gurr Johns Elle worked at the Royal Society of Sculptors as its Membership Manager and also brings extensive experience in marketing roles.  Elle has an MA in Heritage Management from Athens University of Economics & Business and an MA in History of Art and Music from the University of Edinburgh.

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Sarah Aspin
Office Manager
London
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Rufus Bird
Consultant
London
rbird@gurrjohns.com

Rufus brings 25 years’ experience as a leading specialist in the area of Heritage Collections and Decorative Art. Following a 13-year career in the Decorative art department at Christie’s, he was appointed Deputy Surveyor of the Queen’s Works of Art in 2010 and served as Surveyor of the Queen’s Works of Art from 2018 to 2021. Most recently Rufus has acted as a consultant on Furniture and Historic Interiors to the Royal Collection Trust.

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William Boize
Senior General Valuer
London
valuations@gurrjohns.com

With over 30 years’ experience as a valuer, William joined Gurr Johns in 2000. He was previously a Senior Valuer and Associate Director at Phillips International Fine Art Auctioneers both in the Midlands and the South West, after training with Andrew Grant valuers and auctioneers in Worcester. He has also worked in a family firm of antique dealers where he gained a valuable insight into the retail trade.

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Alberto Bologna
Associate Director – Art Financing
London
alberto@gurrjohnscapital.com

Alberto joined Gurr Johns Capital in 2022 as a Credit Analyst, focusing on all aspects of the underwriting process for each transaction.

Earlier in his career he worked at Wells Fargo in London in the Capital Finance division, providing asset based lending solutions to mid-market companies in EMEA. Prior to that he interned in the Impressionist and Modern Art department of Christie’s in London.

Alberto holds a Bachelor of Business Administration from Bocconi University and a Master in Management from ESCP Europe.

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Mahsa Bozorgomid
Office Assistant
London
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Simon Cooper
Senior General Valuer
London
valuations@gurrjohns.com

Simon joined Gurr Johns in early 2014 having previously worked for 13 years at Rosebery’s Auctioneers & Valuers, where he was a Director from 2007. He began his career as an auctioneer and valuer for one of Scotland’s leading provincial auction houses, Thomson Roddick & Laurie, and has worked as an antiques expert for an online antiques website, and as a consultant in various roles including for George Bailey of Sotheby’s at The Auction Room. In 1994 he completed both the Fine Art & Chattels course at Southampton and The National Association of Goldsmiths’ Professional Jewellers’ Diploma, and in 1996 joined the ISVA now incorporated into the RICS. Simon has a broad range of knowledge, and over 20 years’ experience in the fine art world.

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Alixe Dauger (du Cluzeau)
Private Sales Cataloguer – Research Manager, Europe
Paris
aducluzeau@gurrjohns.com

Graduated in Art History and English from the Institut Catholique de Paris and the Sorbonne Paris 1, Alixe also holds a master’s degree from the Institut d’Études Supérieures des Arts (IESA). She gained valuable experience through internships with experts and renowned auction houses.

After a year as a Judicial Clerk at Farrando et Associés, Alixe joined Christie’s as Coordinator of the Impressionist and Modern art Department where, for two and a half years, she managed prestigious sales such as the 20th/21st week in October, the Matisse and Givenchy Collections in 2022 and the Samuel Josefowitz Collection in October 2023.

These rich and diverse experiences have enabled her to develop strong skills in researching, writing, and works analysis, as well as in project management. She joined Gurr Johns as Office Director in July 2024.

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Tudor Davies
Director Advisory, Europe
Paris
tdavies@gurrjohns.com

After graduating with his law degree, Tudor spent twenty years with Christie’s working out of London, New York and Paris. As Head of Department for Impressionist and Modern Art in Paris Tudor introduced the innovative sale platform Paris Avant-Garde, transforming Paris from a Regional to an International sale site. Tudor managed single owner sales including The Triton Foundation Collection (2015) and The Arturo Schwarz Collection (2018); as well as the record-breaking sale of Alberto Giacometti’s Grande femme debout II in 2017. Tudor is a specialist in 20th Century Art with a proven track record in forming trusted relationships with clients and for delivering technical and strategic advice for the growth of their collections.

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Samantha Dunn-Davies
General Valuer and Jewellery and Watches Specialist
London
valuations@gurrjohns.com

Sam joined Gurr Johns in 2022.  She has over twenty years’ experience working in auction houses and art finance as a general valuer in fine art, furniture and decorative arts, together with a specialism in jewellery and watches.

With a Bachelor Degree in History of Art and Design from the University of Northumbria and a Post Graduate Diploma in Decorative Art from Glasgow University, Sam is a member of the Royal Institute of Chartered Surveyors, a fellow of the Gemmological Association of Great Britain and is fully qualified as a gemmologist and diamond grader.

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Spencer Ewen
Senior Director
London
ukadvisory@gurrjohns.com

Spencer has over 30 years of experience in the art world and has acted as an advisor for a diverse range of international clients including both private collectors and institutions. He lifelong passion for culture was first inspired by his father who was an American artist. Having grown up surrounded by art, he went on to study Art History at the University of East Anglia before spending time as a post-graduate at an auction house and gaining valuable market experience at three established art dealerships. He first joined Gurr Johns in 1992 and spent almost a decade at the company before leaving to establish his own successful art advisory business. Spencer rejoined Gurr Johns in 2019, bringing invaluable experience and expertise to the firm having spent over three decades as a leading art advisor.

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Sonia Fazlali-Zadeh
Director, Jewellery & Watches
London
valuations@gurrjohns.com

Sonia joined Gurr Johns in 2018. She has more than a decade of experience in the jewellery industry having started her career as a jewellery designer before moving on to work in retail and latterly focusing on valuations of fine and rare jewels. During this time, she has developed an extensive network of dealers, collectors, specialists and master craftsmen. She is a member of the Institute of Registered Valuers, a fellow of the Gemmological Association and is fully qualified as a gemmologist, diamond and pearl grader, having achieved distinction in her FGA and graduate diamond course with the Gem-A and GIA respectively.

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Iain Fleming
Finance Consultant
London
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Athénais Gaucher
Valuations Cataloguer, Europe
Paris
agaucher@gurrjohns.com
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Anika Guntrum
Managing Director, Europe
Paris
aguntrum@gurrjohns.com

A graduate in Arts History from Mills College, CA, Anika began her career with Christie’s New York in 1996 and relocated to Paris in 2002 to inaugurate the Christie’s Impressionist and Modern Art sales program in France. Vice-president of Christie’s France and International Director of Impressionist and Modern Art, she contributed to the phenomenal development of Christie’s in France.

After 28 years with Christie’s, Anika has joined Gurr Johns as Managing Director of the European operations, founding the office in Paris. A specialist in Impressionist and Modern Art by training, Anika advises collectors on the sale and purchase of works of art across categories. In her short time with the
firm, she has already advised on numerous private sale and auction acquisitions for her clientèle.

Whether it is with buying or selling, Anika’s deep experience in the auction market makes her ideally placed to accompany private and institutional clients in navigating the complexities of the art market
today.

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Alice Hastie Smith
Advisory Assistant
London
ahastiesmith@gurrjohns.com
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Nick Holmes
Consultant, Modern European and British Art
London
ukadvisory@gurrjohns.com

Nick Holmes joined Gurr Johns as a Consultant in October 2021 and brings over thirty years’ experience in the auction and art advisory business.  His expertise lies in Modern European art, with a particular focus on Modern British.

Nick has a degree in Business Studies and is a Post Graduate of Christie’s Fine Art Course.

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Honor Horswell
Business Development and Advisory Executive
London
hhorswell@gurrjohns.com
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Claire-Louise John
Client Relations Manager, Valuations Department
London
valuations@gurrjohns.com

Claire-Louise joined Gurr Johns at the start of 2010. Her ongoing focus is client liaison and business development within the Valuations Department, and in 2014 she was also responsible for Gurr John’s centenary rebrand. An experienced communications specialist, Claire-Louise began her career in business and financial public relations in New York. She has also worked in editorial and publishing. She has a background in arts administration and events, most notably with the Covent Garden Festival of Opera and Music Theatre, an interest now expressed in her role as a Trustee of FitzFest classical music and cultural festival in Fitzrovia. She is an Honours graduate of Aberdeen University and has a Masters degree from the University of London.

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Anthony McNerney
Director, Contemporary Art
London
valuations@gurrjohns.com

Tony joined Gurr Johns in 2013 bringing over 20 years of expertise in the contemporary art world. He started his career at Christie’s where he rose through the ranks to become Director and Head of the Post-War and Contemporary Art departments. He subsequently held senior roles in both the auction and gallery sectors, including Director of Contemporary Art at both Phillips de Pury and Bonham’s, Director of Haunch of Venison gallery and Managing Director of Ben Brown Fine Arts.

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Abdul Motin
Accountant
London
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Jane Oakley
Senior Fine Art Valuer
London
valuations@gurrjohns.com

Jane joined Gurr Johns in 2023 with 25 years experience in the auction world as a picture specialist and auctioneer. She started her career at Phillips in Leeds, before heading to London to broaden and deepen her expertise at Bonhams. She went on to become a Director and head of British & Irish Art at Christie’s South Kensington, followed by a move to Sotheby’s as a Director in the British Art Post 1850 Department, before going on to become Head of Paintings at Sworders. She has a broad knowledge of British and Continental paintings both old and new, working on a number of prestigious collection sales.

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Mark Peters
Consultant
London
valuations@gurrjohns.com

Mark joined Gurr Johns in 1990 having previously worked as a General Valuer at Sotheby’s London for almost a decade. Prior to that, Mark was with the Antiques Department at Bonhams, London, after working as a trainee at Christie’s, London. He has been a Fellow of the Royal Institution of Chartered Surveyors (FRICS) since 1996, and before it merged with RICS, an Associate of the Incorporated Society of Valuers and Auctioneers (ASVA) from 1985. He has over 30 years’ experience and specialist knowledge of jewellery, silver, furniture and porcelain.

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Sophie Samuelson
Collection Manager, Europe
London
ukadvisory@gurrjohns.com

Sophie advises and supports our clients with all curatorial aspects of their fine art and furniture collections. With a decade of experience in the art market, she provides a bespoke approach and draws upon her network of specialist suppliers and services to ensure that our collection management and art advisory services are delivered to exemplary standards.

Sophie was formerly an Associate Director at a London-based art advisory firm where, amongst other achievements, she spent 6 years managing high-net-worth-individuals’ private collections. Most recently she acted as an art and interiors advisor to a prominent private collector, managing and curating their international collection.

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Anne-Marie Shaw
Valuations
London
valuations@gurrjohns.com

Please contact Anne-Marie for all valuation enquiries.

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Veronique Steengracht van Oostcapelle
Director Valuations, Europe
Paris
vsteengracht@gurrjohns.com

Véronique has been a qualified auctioneer since 1990, and also holds a degree in Law and Art History from the Université Paris 1, Panthéon-Sorbonne, and a diploma in Gemmology from the Ecole du Louvre in Paris.

She began her career as a clerk to several auctioneers at the Hôtel des Ventes Drouot, before joining Tyler and Co. as an international loss adjuster, specializing in works of art and jewellery at Lloyd’s of London. From 2004 to 2009, she managed the Gurr Johns / Appap appraisal firm in Paris, with a particular focus on appraisals and valuations.

In 2017, Véronique founded her own company, SvO Fine Arts, where she has maintained first-rate appraisal services to collectors and families. Having been part of the Gurr Johns family for almost twenty years, Véronique is now Director of Appraisals for Gurr Johns Europe.

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Siobhan Tyrrell
Valuations Manager
London
valuations@gurrjohns.com

Siobhan has 30 years’ experience in the valuations world, and is a qualified diamond, pearl and coloured stone grader. Since 2003 she has been a Fellow of the Gemmological Association of Great Britain. From 2004 to 2021 Siobhan was a Senior Valuer at Gurr Johns. She then joined Dawsons Auctioneers as Head of Valuations, London, before returning to Gurr Johns as Head of Valuations, UK in 2023. Prior to that she worked for a number of UK auction rooms including Phillips, and Bonhams. Having attained a BA(Hons) in her first passion, History, she went on to become a Member of the Royal Institute of Chartered Surveyors in 1994, having achieved top marks in both years on the Southampton Fine Art & Chattels course. Since 2019 her valuation and social history knowledge have featured on the BBC Antiques Roadshow. Siobhan’s years of valuation and advisory experience are sought after by an extensive global network of clients.

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Guy Vaissiere
Director, Valuations & Fiduciary Services, Europe
London
valuations@gurrjohns.com

Guy Vaissiere joined Gurr Johns mid 2022.  He has over 25 years of experience in the art market in senior leadership roles across auction house, galleries, private clients and art finance, operating across all sectors from Old Masters to Contemporary.

Before joining Gurr Johns, Guy served as Director of Art Finance at The Fine Art Group in a role that spanned business development and portfolio management and has held senior sales roles in commercial fine & decorative art galleries and an art fair.  Guy began his career in business management roles at Sotheby’s and Phillips.

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Liz Winnicott
General Valuer and Jewellery and Watches Specialist
London
valuations@gurrjohns.com

Liz joined Gurr Johns in April 2023 having more than 16 years’ experience in the auction world and brings with her a wealth of knowledge of the art and antiques market, having most recently worked for several years as a Director of a London auction business.

Following an early career in accountancy and criminal intelligence, Liz decided to follow her passion for arts and antiques and joined a Midlands-based auction room as a valuer and auctioneer. She gained her RICS-accredited MA in Arts Market Appraisal with distinction from Kingston University, before going on to qualify as a gemmologist and diamond grader, again with distinction, and is a fellow of the Gemmological Association of Great Britain. Liz’s breadth of experience has led to a broad understanding of all aspects of the fine and decorative arts markets as well as her specialism in jewellery and watches.

Asia
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Lilly Dai
Business Development Director, Asia
London / Hong Kong
ldai@gurrjohns.com

Lilly Dai is Business Development Director for Gurr Johns in Asia. She is responsible for promoting Gurr Johns across China and South East Asia, ensuring that both private art collectors and institutional clients have the greatest and most seamless possible access to the company’s full suite of art advisory services, including brokerage, valuations, collection management, and art finance.


A native Mandarin speaker, she divides her time between London, Greater China and South East Asia. Prior to joining Gurr Johns in 2021, Lilly spent the majority of her professional career in the art world most recently working for an advisory business in London. She has a BSc and MSc in Urban Design from University College London and a semester diploma in the History of Decorative Arts from Sotheby’s Institute of Art.

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Nivedita Poddar
Delhi
india@gurrjohns.com

Nivedita completed her Masters in Modern and Contemporary Art at Christie’s Education, London. She has previously worked at Christie’s London, Experimenter Gallery, Kolkata and Frieze London.

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Surath Singh
Business Head
India
india@gurrjohns.com

Surath joined Gurr Johns in 2016 bringing with him over 15 years of experience working with art, luxury and lifestyle brands in India. Prior to joining Gurr Johns, Surath had worked with Religare Art for 6 years as Head of Business Development in India. He was instrumental in setting up the Art Advisory business for his previous organisation and has been advising art collectors in building up their portfolio of Modern and Contemporary Indian Art. Besides art, Surath has spent considerable time of his career developing businesses for some of the leading European Luxury brands in India.