British Museum
Great Russell Street
London
England
WC1B
GB
Electrum Greek Coin. Period: 6th c. B.C. circa: 521BC-478BC; Minted in: Phocaea (Asia, Modern Turkey,Marmara Region, Phocaea) Weight: 2.547 grammes. 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).