The Koala Two Hundred dollar gold coin series was produced between 1980 and 1986. The reverse of the coin was designed by Stuart Devlin and features an intricate design of a Koala clutching a tree along with the denomination written as "TWO HUNDRED DOLLARS". Between 1980 and 1984 the obverse featured Machin's portrait of Queen Elizabeth II before swapping to Maklouf's portrait from 1985 both feature the standard legend "ELIZABETH II AUSTRALIA" followed by the year of issue. This coin was originally packaged in a wooden display case with a numbered certificate.
The Koala is an Australian native marsupial that can be found in coastal areas toward the east and south of the mainland. They are nocturnal and extremely sedentary, spending up to 20 hours a day sleeping. Although a protected species the Koala faces substantial conservation challenges as urban development extends into much of their natural habitat. The extent of this issue is difficult to gauge due to a lack of robust population reports, total estimates vary from less than 100,000 to over 500,000.