Designer: obverse: Arnold Machin; reverse: Stuart Devlin
Reference: KM# 64
Diameter: 19.4 mm
Reverse In the central part is an image of a sitting echidna and a large numeral 5.
Obverse In the left part, along the curve of the coin's edge, is the inscription 'ELIZABETH II'. Translation: 'Elizabeth II'. On the right – the name of the country Australia in English and the year of minting 'AUSTRALIA 1980'. In the central part is the right-facing profile of Queen Elizabeth II.