Machin (1966-1984)

The first portrait of Her Majesty on Australian decimal coinage was designed by Arnold Machin OBE RA for the British Royal Mint and approved in 1964. This portrait was adopted for the obverse design of Australia's new coinage to be released on C-Day, 14 February 1966 and preceded its first use on British coins in 1968.

Machin's  obverse design on coins of different denominations