The Australian one ounce silver piece (abbreviated as 1 oz and designated with Ag for "silver") is a bullion and commemorative coin format. Uniquely, in Australia there are two mints authorised to strike legal tender: the Royal Australian Mint (which also makes the country's circulating coinage) and the Perth Mint which only makes collector and bullion coins, as well as other bullion products.
Some of these coins can be classified as "Smartminting" (or "smart minting") due to the technologies used in their production; these include irregular shapes, coloured surfaces, precious stone inserts etc. The coins are targeted at collectors who appreciated them as art rather than at bullion investors.
This coin is part of the "Echoes of Australian Fauna" series by the Royal Australian Mint, and is the first one that the mint issues with black nickel covering (black nickel is achieved by electroplating and then additional treatment to change the otherwise silvery colour of the metal).
The coin features a Tasmanian Tiger.
Until 1930, Tasmania's magnificent wilderness was home to a shy, striped marsupial popularly known as the Tasmanian Tiger, or thylacine. 'Benjamin', the last known Tasmanian Tiger, died on 7 September 1936 at Hobart Zoo. This stunning silver coin pays tribute to the thylacine in its natural environment. The black nickel plate accentuates the mysterious and primordial nature of the landscape while the selectively gold plate, alternating with the black nickel, provides a beautiful contrast showcasing these unique and elusive creatures. | 
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