The Australian two-cent coin is the second smallest denomination coin of the Australian dollar. Together with coins of the one cent denomination, it was withdrawn from circulation in February 1992. The coins were not demonetised though and remain legal tender.
In 2006, the Royal Australian Mint produced some for mint sets (regular coins and proofs), celebrating the 40th anniversary of the denomination.
Gold proofs have a diameter of 21.59mm, weigh 11.31g and are of 0.999 purity (0.3633 oz. AGW).
Silver proofs of the same year have Her Majesty's "Second Portrait" (by Arnold Machin) and are listed separately.