Judith MillerJudith Miller began collecting in the 1960s while a student at Edinburgh University in Scotland. She has since extended and reinforced her knowledge of antiques through international research, becoming one of the world's leading experts in the field. In 1979 she co-founded the international best-seller Miller's Antiques Price Guide and has since written more than 100 books which are held in high regard by collectors and dealers.Duncan CampbellFrom 1986, both at university and during an earlier career in corporate finance, Duncan spent every Saturday working for a well-known silver dealer in Portobello Road. Since 1993 he has built up a specialist silver business based in Bath, south-west England, focusing on the more unusual areas, such as early, foreign and colonial, ecclesiastical and rare silver. Duncan has produced silver catalogues and research for a wide variety of private clients and also for institutions, including The Worshipful Company of Armourers and Braziers, The City of Nottingham Museum, The Baltic Exchange, Lloyd's of London and The Bowes Museum. Since 2009 he has also been an expert on the BBC's Antiques Roadshow, one of his highlights having been the discovery of a silver spoon dating back to 1440.