British Museum (Stop W), London, United Kingdom
Great Russell Street
London
England
WC1B
GB
Gold coin; Ruler: Constantine V Copronymus; Leo III, Byzantine Emperor; Period: Middle Byzantine; circa: 737-741; Minted in: Constantinople. Weight: 4.4 grammes Diameter: 19 millimetres. British Museum is closed 24, 25 and 26 December and 1 January, but is open every other day of the year. Fast facts about the British Museum: Founded: 1753, Collection size: 8 million objects, Oldest object in the collection: Stone chopping tool (nearly 2 million years old).