On 17 September 1892 gold was discovered in Coolgardie in Western Australia. It was not the first find but it was the biggest, and the one which began a gold rush that changed the fortunes of the colony which had just become independent from Britain. Claire Bowes presents an archive interview with Frank Gerald, who as a young man, witnessed the discovery. His account was recorded in 1937.(Photo: Gold prospectors in Australia panning water and silt in search of small nuggets. Credit: Three Lions/Getty Images)