British Museum Department of Coins and Medals

The British Museum Department of Coins and Medals is a department of the British Museum involving the collection, research and exhibition of numismatics, and comprising the largest library of numismatic artefacts in the United Kingdom, including almost one million coins, medals, tokens and other related objects. The collection spans the history of coinage from its origins in the 7th century BC to the present day, and is representative of both Eastern and Western numismatic traditions. Provided by Wikipedia