West African Currency Board
The West African Currency Board was a bank of issue headquartered in London with a mandate to issue the British West African pound at par with the pound sterling, the currency of British West Africa. As such, it acted as the central bank for the British colonies of the Gambia, Sierra Leone, Gold Coast and Nigeria from its establishment in 1912 to the adoption by the newly independent countries of their own currencies. It was thus succeeded by the Bank of Ghana in 1958, Central Bank of Nigeria in 1959, Bank of Sierra Leone in 1964, and The Gambia Currency Board in 1965.