Jon Baddeley is a senior director and auctioneer at Sotheby's with special responsibility for Internet Auctions in Europe, Australasia and the Far East. His expertise covers a wide range of objects including scientific and technical instruments, cameras, toys, marine works of art, sporting and entertainment memorabilia, and mechanical musical instruments. Jon is the author of the reference book Nautical Antiques and Collectables and has contributed to the ANTIQUES ROADSHOW publications How to Spot a Fake and The A-Z of Twentieth Century Antiques.