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Duke's Auctioneers, Valuers, Specialists and Staff


Garry Batt | Partner

Garry Batt - Partner - Duke's AuctioneersGarry has been a partner in Duke’s for nearly thirty years and is a long-established Senior Valuer and Auctioneer. He is a Chartered Surveyor and has a degree in Law.

Garry has always had a love of antiques with his particular interests being 18th century porcelain, 20th century paintings and English furniture.

As well as running the business and carrying out professional valuations for Inheritance Tax Assessment and Insurance, Garry enjoys visiting clients and providing advice on selling their precious collections of antiques.

Garry is very involved in the wider Dorset community, has a passion for opera and literature together with his many outdoor pursuits including sailing and horse riding. He is in much demand as an entertaining guest speaker and auctioneer at charity events.

Guy Schwinge | Partner

Guy joined Duke’s in 1983 and took his first auction at the age of 19. He qualified as a Chartered Surveyor specialising in Art and Antiques early on and became a partner in the firm at the age of 27.

Guy’s discoveries over the years have been well-documented in the national press, including two tiny paintings by the Renaissance Master, Fra Angelico (1395-1455). Guy spotted these behind the bedroom door of a house in Oxford and they went on to set a record at Duke’s selling for almost £2 million. The discovery made front page news in this country and around the world.

As well as advising on sales at auction, Guy has negotiated the sale of important works of art on behalf of clients to Museums in the United Kingdom and the USA. He has been involved with complex negotiations involving Heritage and Estate Planning issues, including the “Acceptance in Lieu” sale to the Ashmolean Museum, Oxford, of pre-Raphaelite masterpieces by Burne Jones (1833-1898) and Rossetti (1828-1882).

His interest in Asian Art developed after he masterminded the Melplash Court auction on the premises (a record £3.5 million total) and he went on to advise on the sale of a group of jades billed as

“Treasures from the Summer Palace”. The highlight of this auction was an exquisitely carved white jade cup standing just 4” high, which sold to a buyer from Hong Kong for £530,000.

Guy travels widely to advise clients on valuations and auction sales throughout the UK and Europe. He lives in the wilds of West Dorset with his wife and four children.

Matthew Denney | Auctioneer and Senior Valuer

Matthew Denney - Auctioner and Senior Valuer - Duke's AuctionsMatthew has been involved in the antiques business for over thirty years. Senior valuer at Duke’s since 2001 Matthew has a far-reaching and long-standing love of antiques of all sorts.

With a specialist interest in late 19th and 20th century art and design Matthew has been instrumental in bringing some important collections and individual items to auction. Dividing his time between cataloguing, visiting clients in their homes and writing professional valuations.

Matthew is a long standing member of the Royal Institute of Chartered Surveyors and a speaker and lecturer on numerous antique subjects.

Amy Brenan | Auctioneer and Valuer

Amy Brenan - Auctioneer and Valuer - Duke's AuctionsAmy started her career as an  Auctioneer at the age of 19, selling chickens and produce at her local agricultural auctioneers before moving on to join the Fine Arts department of the same auction house two years later.

She joined Duke’s aged 23 as a junior valuer and qualified as a member of the Royal Institute of Chartered Surveyors in 2010. Now in her 10th year at Duke’s, Amy heads up the successful Jewellery department, realising her passion for all things ‘sparkly’.

She is a member of the Society of Jewellery Historians and is a qualified member of the Gemmological Institute of Great Britain. Amy regularly features in Homes and Antiques magazine as a jewellery specialist and works behind the scenes as a jewellery valuer for RDF Television.

Timothy Medhurst | Auctioneer and Valuer

Timothy Medhurst - Auctioneer and Valuer - Duke's AuctionsTimothy is head of the Coin, Militaria and Collectables department at Duke’s after joining in 2014. With rostrum and auctioneering experience from the age of 17, Tim was the winner of the first Antique Young Gun of the Year award in 2013, and is now an ambassador for the Antique Young Guns as well as a regular columnist for the popular Antiques and Auction website Barneby’s.

Tim also has a keen interest in English and Continental ceramics, cataloguing our twice yearly auctions for this popular area.

Deborah Doyle

With almost forty years’ experience in the world of Antiques, Deborah joined Duke’s in 1997 after running a successful business specialising in antique clocks and timepieces.

Maintaining this specialism in horological items, Deborah catalogues clocks and watches at Duke’s, as well as being an accomplished general valuer with excellent knowledge in jewellery.

Deborah has also run Duke’s successful Vintage clothing and Accessories auctions, which have proven to be very popular, gaining worldwide coverage.

Adam Schoon | Asian Art Consultant

Adam Schoon - Asian Art ConsultantAdam joined Dukes in 2016 to head up their highly successful Asian Art Department.

With a lifelong passion for Chinese and Japanese art, Adam joined the Oriental Ceramic Society of London and took the opportunity to travel extensively both in Europe and the Far East to study museum and privately owned collections.

As a consultant valuer of over 35 years he has specialist knowledge relating to probate, insurance, and chattels lease-back schemes. Adam is a well-known specialist on BBC TV Antiques Roadshow having joined the programme in 1999.

John Holmes
Operations Director

Responsible for the general management of Duke’s, John joined the team in 2002 as a porter before rising through the ranks becoming first saleroom manager at our Grove (now Avenue) saleroom, then progressing to the same position at our Fine Art premises.

Now in his position as Operations Director, John has varied responsibilities ranging from catalogue production and auction presentation through to staff management.

John also has a strong interest in Art, with particular focus on 20th century British and American works and catalogues the oil paintings section of Duke’s twice yearly Fine Paintings auctions.

Stephanie Smith | Executive Administrator and PA to the Partners

Stephanie Smith - Duke's

Susannah Ross | Accounts Administrator

Susannah Ross - Duke's

Maddi Puleston | PR, Media and Gallery Executive

Maddi Puleston - Duke's

Gemma Meek | Saleroom Co-ordinator

Gemma Meek - Duke's

Phillip Traves | Saleroom Manager and Auctioneer

Phillip Traves - Duke's

Sallie Batten | Executive Administrator

Sallie Batten - Duke's

Scott Grimsey| Saleroom Co-ordinator and Valuer

Scott Grimsey - Duke's

Antoinette Richards | Saleroom Co-ordinator

Antoinette Richards - Duke's


Forthcoming Fine Art Sales

22nd February 2018
Spring Fine Art Sale - 22nd and 23rd February 2018

Quarterly Fine Art auctions to include Silver, Jewellery, Paintings, Ceramics, Furniture and Works of Art

(Last date for entries: 12th January)

12th April 2018
Coins, Antiquities and Militaria

(Last date for entries: 2nd March)

View all forthcoming Fine Art Sales

Forthcoming General Sales

30th January 2018
Avenue Auction

20th February 2018
Avenue Auction

View all forthcoming General Sales

Previous Fine Art Sales

7th December 2017
Jewellery and Silver, Furniture and Works of Art - [7th and 8th December 2017]

Including a private collection of tin plate trains and accessories from a Noble European Family

6th December 2017
Fine Wines

Including the Cellar of the Late Sir Antony Jay

View all previous Fine Art Sales

Previous General Sales

9th January 2018
Avenue Auction

5th December 2017
Avenue Auction

View all previous General Sales

Featured Lots

  • PADRAIG MACMIADHACHAIN (1929-2017) 'Moon Near the Lighthouse

    PADRAIG MACMIADHACHAIN (1929-2017) 'Moon Near the Lighthouse

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  • PRINCE PAUL TROUBETZKOY (1866-1938) A woman seated

    PRINCE PAUL TROUBETZKOY (1866-1938) A woman seated

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  • WU GUANZHONG (1919-2010) 'White birches on Mt. Changbai'

    WU GUANZHONG (1919-2010) 'White birches on Mt. Changbai'

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  • DAME ELIZABETH FRINK (1930-1993) A green man

    DAME ELIZABETH FRINK (1930-1993) A green man

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Contact Us

Brewery Square,

Call: +44 (0) 1305 265 080
Fax: +44 (0) 8707 260 101


Contact Us

Avenue Auctions,
Weymouth Avenue,

Call: +44 (0) 1305 257 544
Fax: +44 (0) 1305 259 953