5 Dollars - Elizabeth II 4th Portrait - Echidna - Gold Proof

Part of the Perth Mint's long-running Australian Nugget and bullion proof program, this miniature gold piece belongs to a fractional series aimed squarely at the collector rather than the investor. The echidna selection is notable — the animal had appeared on Australian circulating coinage decades earlier before being displaced, and its reappearance here reflects the Mint's deliberate reach into native fauna as a differentiating strategy against competing sovereign mint products in the Asian collector market.

At 1.25 grams of .9999 fine, the planchet is unforgiving of any handling. Perth's encapsulation practice for this series was partly a response to contact marks becoming a genuine commercial problem on earlier fractional proofs.