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.
This coin is part of the Marvel Coin Series - silver bullion coins depicting characters from Marvel comics, and features Deadpool.
The mint says about it:
Wade Wilson was born in Canada but grew up to be the least Canadian person ever. When it comes to the Merc with a Mouth, with great power comes no responsibility. The fast-quipping mercenary's healing factor - and big mouth - make him one of the most relentlessly wise-cracking heroes in the universe. Called the Regeneratin' Degenerate, Deadpool possesses a healing factor that allows him to recover from grave injuries and regenerate body parts! | 
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