The Australian one-cent coin is the smallest denomination coin of the Australian dollar. In 1991, no circulation coins were issued; they were only produced for mint sets (regular coins and proofs). The denomination was withdrawn from circulation the next year, in February 1992. However, it was not demonetised and these coins remain legal tender.
Silver proofs weigh 3.01 grams and are sterling silver (0.925, 0.0889 oz. ASW).
Crowned bust of Queen Elizabeth II wearing a pearl necklace, facing right (effigy known as the "Third Portrait"); incuse in tiny letters on neck truncation, the designer's initials RDM (for Raphael David Maklouf).
Around, the monarch's legend and the date: ELIZABETH II AUSTRALIA 1991.