Australian Aero Club enamel badge

Metal and enamel membership badge of the Australian Aero Club. It has an outer border in light blue with gold edges both sides in which is written 'Aust. Aero Club' in gold letters. The central area is dark blue and has five small stars in gold, possibly representing the Southern Cross constellation. There is a gold metal bird (most likely an eagle) with wings outstretched well beyond the central circle on either side. The bird's head is facing to the right. The reverse has a circular gold metal attachment.