The Type II twenty cent was issued from 1985 up until 1998 and featured the new Raphael Maklouf portrait of her majesty
Queen Elizabeth II on the obverse, with Stuart Devlin's platypus design
on the reverse. Devlin's initials (SD) can be found within a swirl near
the platypus' foot. The series was struck exclusively at the Royal Australian Mint in a cupro-nickel
alloy with an additional silver
produced in 1991 as part of the year's Masterpieces in Silver set.
The initials of the designer Stuart Devlin (SD) on a 1990 Proof Twenty Cent piece.
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