The image on the Australian two dollar coin represents an archetype of an Aboriginal tribal elder, designed by Horst Hahne. Numerous designers were invited to. Many of the uncirculated Australian $2 coins are special in their design and serve as a symbol or remembrance. For example, the Royal. The Australian two-dollar coin is the highest-denomination coin of the Australian dollar. It was first issued on 20 June , having been in planning since the mids. It replaced the Australian two-dollar note due to having a longer.