Designer: obverse: Arnold Machin; reverse: Stuart Devlin
Reference: KM# 64
Diameter: 19.4 mm
Reverse In the central part is an echidna curled into a ball. Below it is the number "5". Under the image are the letters "SD", denoting the initials of the designer, Stuart Devlin.
Obverse Along the rim is text in English, on the left: "ELIZABETH II", on the right - the country name Australia and the year of minting: "AUSTRALIA 1976". In the central part is a right-facing profile of Queen Elizabeth II of Great Britain.