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.
Both mints endeavour to create coins with attractive designs, and to introduce new designs and themes often, in order to raise the numismatic value of the coins over the value of previous metal used.
The 2021 Cheetah one-ounce silver bullion coin is the second release in the Australia Zoo coin series.
The cheetah belongs to one of the world's most endangered species and is estimated to have fewer than 7,000 individuals in the wild. The design of the coin was inspired by a photograph by Steve Irwin's son Robert, made at Australia Zoo in Queensland.
Native to Africa, the cheetah is the fastest land animal in the world and can reach up to 112 kilometres per hour in three seconds. The cheetah's physique is all about speed. Its slender body and long, thin legs are particularly suited to high acceleration. Despite its size, the cheetah does not belong to the subspecies of big cats, such as lion and tiger, but to the subspecies of small cats. They hunt during the day and have black tear marks under their eyes to serve as an anti-glare effect. They can be recognised by their golden yellow fur, which is dotted with black spots. | 
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