A silver coin (28 mm diameter with milled edge) featuring a crowned and robed bust of George V facing left; around, GEORGIVS V D. G. BRITT: OMN: REX F. D. IND: IMP: ; below bust in small lettering the artist's initials B.M.
The reverse features the Ensigns Armorial of the Commonwealth of Australia, as authorised by Royal Warrant 7th May 1908 - composed of a simple shield enclosing a cross of Saint George on which are five six-pointed stars, around the outside of which are six small escutcheons, i.e., small shields. The shield is supported by a kangaroo and an emu standing on a grassy mound. Above the shield a crest, the seven-pointed star of Federation on a wreath. Below on a ribbon the motto ADVANCE AUSTRALIA was inscribed. Around above, ONE FLORIN - TWO SHILLINGS and below, between arrow heads, the date, 1920.
Below the date is the mint mark M; above the date, a small star. The star is designed to indicate that the silver in the coin had been debased below the then standard of sterling silver (.925 fine).
According to the Catalogue of British Commonwealth Coins 1649 - 1971, 4 specimens are known.