Designer: obverse: Arnold Machin; reverse: Stuart Devlin
Reference: KM# 64
Diameter: 19.4 mm
Reverse In the central part of the reverse is a relief, front-facing Australian echidna, with the numeral 5 on the animal's body. Below the image are the designer's initials Stuart Devlin - 'SD'.
Obverse In the central part is the right-facing profile of Queen Elizabeth II of Great Britain wearing a crown. On the left, following the curve of the coin's edge, is the monarch's name 'ELIZABETH II' in English. On the right is the country name 'AUSTRALIA' in English and the year of minting '1972'.