1 Dollar - Elizabeth II Siberian Tiger

Part of the Perth Mint's ongoing wildlife series issued through Tuvalu, this coin draws its authority from Australia's longstanding arrangement to produce legal tender coinage for the Pacific microstate. Tuvalu itself has no mint and a population under 12,000 — its name on collector silver is essentially a licensing arrangement that has generated hundreds of distinct issues since the 1970s.

The Siberian tiger population had fallen to roughly 500 wild individuals by 2012, a figure that drove significant conservation legislation in Russia that same year under Putin's direct political sponsorship.