5 Dollars - Elizabeth II 4th Portrait - Grey Kangaroo - Gold Proof

The Grey Kangaroo bullion and proof series from Perth began in the 1980s as part of Australia's broader push to compete with the Krugerrand and Maple Leaf in the international gold market. By 2006, the one-tenth ounce and smaller denominations had found their primary audience not among investors but among completionists working through annual proof sets. The .9999 fineness — four nines — was a deliberate marketing edge over the Krugerrand's .9167, appealing to buyers in Asian markets where purity carries commercial weight.