Australia 785/799 set of 7 1982

Australia 785/799 set of 7 issued in 1982, MNH, $7.05. Michel 781-787a. Corroboree frog, Eastern snake-necked tortoise, Blue Mountains tree frog, Smooth knob-tailed gecko, Yellow-faced whip snake, Easter water dragon, Freshwater crocodile. The stamps were issued 04.19 or 06.16.1982.