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 Lesser Bilby.
The rabbit-like marsupial Lesser Bilby (Macrotis leucura) was an inhabitant of Australia’s driest deserts and was recorded as a living animal on just a handful of occasions between its discovery in 1887 and its extinction in the 1950s. | 
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