Grosvenor Team

The Grosvenor team are always working with your interests in mind. We provide you with a highly experienced in-house team of philatelic professionals backed by an exceptional team of consultants covering all aspects of the philatelic world. Below are the Grosvenor team credentials and roles.

James Grist

Director, Auctioneer

James grew up in a Devon rectory and became a professional auctioneer after reading Medieval & Modern Languages at Oxford. Specialising in British Empire countries, James worked previously for both Harmers and Phillips and joined with Andrew Claridge and Nick Mansell to found Grosvenor Auctions in 1997. Among many collecting fields, James has special interests in the Falkland Islands and Anglo-Zulu War. He is married with two children and lives in South West France, travelling regularly to London.

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Nick Mansell


Nick was first introduced to stamps at an early age with a collection from an elderly relative and he has been a professional philatelist now for over 35 years. He began dealing whilst in his teens in the Midlands and joined first in business with his father, Norman, who is still well remembered around the auction houses. His knowledge of commercial trading has been invaluable in the establishment and everyday business of the company. His own collecting interests focus on classic British Commonwealth. When not in London, Nick may be found in Sussex with his wife and cats.

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Glyn Page


Glyn joined HR Harmer in 1965 where he was a describer until 1976 specialising in Foreign Countries. He subsequently joined Argyll Etkin Ltd, researching postal history and pricing stock, and in 1986 became a senior describer for Phillips (later Bonhams). He has five daughters and he enjoys spending time in Spain.

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Chris Lawrence

Director, Office & Accounts Manager

Chris Lawrence was raised as a Leeds Loiner returning to the city to study accountancy after reading Economics at Sheffield University. Deserting Yorkshire he travelled and worked for many years around Europe and Asia. Chris joined Northamber the computer wholesaler spending thirteen years with the company before being tempted to leave and join Grosvenor in 2002 to run the office.

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Andrew Williams

Director, Auctioneer

Andrew joined the Grosvenor team in 2009 to run the publishing studio and producing the Great Britain catalogues. Andrew is now part of the describing team and enjoys the challenge of researching new areas and expanding his expertise.

Andrew lives in Hertfordshire with his partner and daughters. His various interests include; rugby, fencing and the history and coinage of imperial Rome.

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Charles Napper

Charles worked as a botanist for fourteen years in Cambridge after graduating from university in 1973. He then entered the philatelic trade in 1989, joining Stanley Gibbons Auctions in 1990. He subsequently joined Phillips (later Bonhams) in 1992 as a describer and valuer, responsible for cataloguing Great Britain, British Commonwealth and Foreign countries, and travelling throughout the country and overseas looking at collections and conducting valuation days, before leaving to join Grosvenor.

Charles lives in Cambridge, and has two sons. He adds further strength to the already impressive team at Grosvenor Auctions.

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Tom Margalski

Tom joined Grosvenor in 2012 after graduating from the University of Kent with a degree in history. He is an integral part of the front office team and is responsible for a range of client services as well as producing the scans for the catalogues.

Tom lives in Luton and loves any philatelic item larger than A4.

Constanze Dennis

Constanze began life in the beautiful market town of Chesterfield before reading physics at Oxford University. She joined Sandafayre as a philatelic describer in 2012 moving to Grosvenor in March 2014.

Constanze lives in Luton and enjoys modular origami, computer games and contemporary Middle Eastern art.

David Boyd


David Boyd started his philatelic career with Robson Lowe in 1958. In 1972 he was appointed Manager of the International Fine Art and Antique Auctioneers – Phillips, Son & Neale. Although the company had a tradition of stamp auctions, the department was run down. David turned the department around and within three years he was appointed to the main Board where he served for 24 years. He secured many great collections for sale including the fabulous studies of Norway and Italian States formed by Baron Alphonse Rothschild. David served as Chairman of the Philatelic Traders Society and Chairman of Stampex each for two years. He is an honorary member of the Philatelic Traders Society. Among his collecting interests are flown propaganda leaflets.

Married for 50 years, he has two daughters and he and his wife Pat enjoy walking, cycling and travelling. He is a keen bird watcher and President of the Redmon Cycling Club.

Stuart Billington


Stuart Billington joined Grosvenor in 2005, as a part time consultant having previously been head of department at Philips (later Bonham’s) between 1999 and 2005. With Phillips and Bonham’s he spent much time travelling, about 50,000 a miles a year. As part of the Grosvenor team Stuart spends most of his time visiting clients and carrying out valuations. Stuart’s main areas of interest are in the Commonwealth, China and Egypt.

Stuart owns a farm in Devon where his wife runs an organic vegetable business

Tristan Brittan


Tristan Brittan joined Grosvenor in January 2005. His interest in stamps started in the early 1970s when he was given a large packet of Malayan stamps. After finishing school in Wokingham he went to work for Stanley Gibbons, gaining a useful knowledge of Commonwealth and GB including Postal History. After leaving Stanley Gibbons he worked with various dealers to widen his experience, and travelled frequently to Hong Kong where he developed an extensive knowledge of Asian philately.

Peter Rennie


Peter’s interest started at an early stage and continued through the stages of stamp club trading, part time dealing, to 20 years as a full time dealer in all things philatelic.

Peter was employed in the international steamship trade for over 30 years . He has represented Grosvenor for the last 3 years, previously having been a consultant for both Philips and Bonhams arranging and participating in many valuation days in Eastern Canada.

Born in Epsom, Peter emigrated to Canada at age 19. He is married for 48 years, has 4 children, 2 boys and 2 girls, and 8 grandchildren.

Gary Brown


Gary is a well-known name in Australian philately, having been a philatelic exhibitor since the 1980s and a collector all his life. He is an international judge in Traditional and Postal History with a number of international qualified exhibits that have included Aden Postal History, for which he won the Grand Prix d’Honneur at Sharjah 2012. He is currently an International Officer of the Australian Philatelic Federation and the incoming President of the Royal Philatelic Society Victoria.

Stephen D. Schumann


Stephen has been a member of the American Philatelic Society for 50 years, the Royal Philatelic Society, London for 36 years and has been active in organised philately for over 40 years. He has served as an elected Director (1989-1991), Member of the Fakes and Forgeries Committee (1990-1998), Committee on Accreditation of National Exhibitions and Judges (2000-2008), and Chairman of the International Committee (1998- present). A trustee of the American Philatelic Research Library since 2009, he received the Luff Award for Exceptional Contributions of Philately in 2007 and became a Vooys Fellow of the American Philatelic Research Library in 2008. In recognition of his philatelic contributions he was invited to sign the Roll of Distinguished Philatelists in 2015.

Robert P. Odenweller


Robert is one of the foremost philatelists in the U.S.A., a researcher, expert, writer, exhibitor and judge. He is a signatory to the Roll of Distinguished Philatelists, a past-president of The Collectors Club (New York) and an Honorary Fellow of the Royal Philatelic Societies in both London and New Zealand. His many philatelic awards include the Lindenberg, Lichtenstein and Luff Awards, and the Smithsonian Philatelic Achievement Award. As an exhibitor his first issues of New Zealand received the APS “Champion of Champions” award, and the F.I.P. Grand Prix d’Honneur. He is currently the senior active F.I.P. judge worldwide, and has been an AIEP expert since 1980.