John Kent (numismatist) in AD 491. He also completed two volumes on the Continental Celtic Coins in the British Museum and other collections left incomplete by the death of previous keeper Derek Allen, which were published in 1987 and 1990. In 1974 he was promoted Deputy Keeper, and in 1983 Keeper, of the British Museum's coin and medal collection, a post he held until his retirement in 1990. A commemorative medal was struck to mark his retirement. He died in 2000. He had married Patricia Bunford in 1961 and had a son and a daughter. John Kent (numismatist) John Philip Cozens Kent (28
Henry Cohen (numismatist) Henry Cohen (numismatist) Henry Cohen (Amsterdam, 21 April 1806 – Paris, 17 May 1880), was a French numismatist, bibliographer and composer. Cohen moved from Amsterdam to Paris, where he worked as a music teacher and served as curator of the Cabinet des Médailles at the "Bibliothèque nationale de France". He published several works during his lifetime. Cohen's "Guide de l'amateur des livres à vignettes du XVIII Siècle" went through four editions and is considered the standard bibliography of French 18th century illustrated books. He is perhaps best known for his two fundamental works on ancient numismatics: the first, published in