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 Together with coins of the one cent denomination, it was withdrawn from circulation in February 1992.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.
Unlike all other coins of the same year, silver proofs have Her Majesty's "Second Portrait" (by Arnold Machin), which was last used in Australia in 1984. They have a diameter of 21.6mm, weigh 5.18g and are of 0.999 purity (0.1664 oz. ASW).