The Tuvaluan Dollar is the currency of Tuvalu - a small nation in the Pacific Ocean. Tuvalu has never had banknotes of its own, and has been issuing coins since 1976; these circulate together with coins of the Australian Dollar, which is also legal tender in the country, and to which the Tuvaluan Dollar is pegged.
The Australian Perth Mint issues a large variety of non-circulating legal tender coins under the authority of Tuvalu. Some of these are in the silver ounce format (abbreviated as 1 oz). Strictly speaking, they are not bullion as they are priced at a premium and are targeted at collectors who appreciate them for their artistic merit and collectable value and not just for their precious metal content.
The Mint says about this coin:
The fourth release in the fascinating Australia’s Remarkable Reptiles series features the Australian Goanna.
Goannas are large, carnivorous reptiles also known as monitor lizards which can be found throughout Australia. Goannas are capable of swimming, and can also climb trees. They will move quickly when pressed, often sprinting short distances to escape harm. Goannas will rear up when threatened, and also inflate flaps of skin around their throats and emit a harsh hissing noise.
Struck by The Perth Mint on behalf of Downies from 99.9% silver in proof quality. | 
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