The Australian florin was a coin used in the Commonwealth of Australia before decimalisation in 1966. The denomination was first minted in 1910, to the same size and weight as the United Kingdom florin. Florins minted from 1910 to 1945 were produced with a .925 sterling silver content, weighing 11.31 g (0.3636 troy ounces) with an actual silver weight (ASW) of 10.46 grams (0.3363 ozt). Florins minted between 1946 and 1963 were produced with a .500 silver content, weighing 11.31 g with an ASW of 5.65 g (0.1818 ozt).
The florin was worth 24 pence, two shillings or a tenth of a pound. The coin was minted until 1963, with some years of omission. When Australia decimalised on 14 February 1966 the florin was equal to 20¢.
During World War II, between 1942-1944, florin production was supplemented by coinage produced at the San Francisco branch of the United States Mint. These coins bear a small "S" mint mark below the Australian coat of arms.
The image on the reverse of the coin was the Coat of Arms of Australia (except for commemorative coins). This comes in two forms, all with the kangaroo, emu and the shield containing the coat of arms. Those issued between 1910 and 1936 have a star above the Coat of Arms, and the Southern Cross within the shield. Those issued between 1938 and 1963 have the royal crown above, the six states represented in the shield and wattle plant as a background.
Composition: 0.925 silver (0.3363 oz ASW).