Royal Mint to the Royal Mint opening satellite branches of itself overseas. In Australia, the local Legislative Council petitioned the UK government to establish a branch of the Royal Mint in Sydney (Sydney Mint) after prospector Edward Hargraves discovered gold in Ophir, New South Wales in 1851. The petitioned gain royal assent in 1853 and plans were made by the Deputy Master of the Royal Mint in London to open the Royal Mint's first overseas branch within the colony. The Royal Mint's Superintendent of Coining travelled to Australia to oversee its establishment on Macquarie Street within the southern wing of Sydney Hospital
Royal Mint as part of a wartime effort. It struck sovereign from 15 Aug 1918 til 22 Apr 1919. before closing in May 1919. A sixth and final overseas mint was established in the Union of South Africa in Pretoria on 1 January 1923, producing £83,114,575 worth of sovereigns of its lifetime. As South Africa began cutting ties with Britain, the mint closed on 30 June 1941 only to be later reopened as the South African Mint. Although just six mints were officially controlled by London's Royal Mint, many more independent mints were set up to facilitate parts of the British Empire.