Designer: Obverse: Ian Rank-Broadley; Reverse: Stuart Devlin
Reference: KM# 401
Diameter: 19.4 mm
Reverse At the bottom is the numeral "5". In the center is an echidna curled into a ball. Below the image are the letters "SD", denoting the initials of the designer, Stuart Devlin.
Obverse In the center is the right-facing profile of Queen Elizabeth II of Great Britain. Below the neck truncation are the initials of the designer Ian Rank-Broadley: "IRB". Around the rim are inscriptions in English: on the left, "ELIZABETH II"; on the right, the country name and year of issue: "AUSTRALIA 2012".