100 Dollars - Elizabeth II 6th Portrait - Australian Wedge-tailed Eagle - Platinum Bullion Coin

Perth Mint launched its platinum Wedge-tailed Eagle bullion series in 2014 as a direct challenge to the entrenched dominance of Canadian and American platinum issues in the Asian investment market — a deliberate strategic pivot toward collector-investors who had largely ignored Australian platinum to that point. The 6th portrait of Elizabeth II, sculpted by Jody Clark and adopted by the Royal Australian Mint in 2019, appeared on Australian bullion coinage with some lag across different series.

Platinum at .9995 fineness exceeds the .9999 gold standard in practical refining terms — the additional purification step is technically demanding and not universally achieved by competing mints.