Designer: obverse: Arnold Machin; reverse: Stuart Devlin
Reference: KM# 62
Diameter: 17.51 mm
Reverse On the left is the numeral '1' against the background of a mammal: a feathertail glider curled into a ball.
Obverse The central part features the right-facing profile of Elizabeth II, Queen of the United Kingdom. Around the rim is text in English: on the left, the name 'ELIZABETH II', and on the right, the country name Australia and the year of issue: 'AUSTRALIA 1977'.