Australian twenty-cent coin Australian twenty-cent coin The Australian twenty-cent coin of the Australian decimal currency system was issued with conversion to decimal currency on 14 February 1966, replacing the florin which was worth two shillings – a tenth of a pound. (The Australian pound was converted to two Australian dollars.) To date, three different obverse face designs have been used: from 1966 to 1984, the head of Queen Elizabeth II by Arnold Machin; from 1985 to 1998, the head by Raphael Maklouf; and since 1999, the head by Ian Rank-Broadley. The obverse has the inscription AUSTRALIA and the year-of-issue on the right hand
Penny (British pre-decimal coin) relates to coins minted with that particular mint mark. "H" refers to the Heaton Mint, and "KN" to the King's Norton Mint, both of which were contracted to mint supplemental pennies on occasion. From 1825 to 1970 a total of 3,629,384,952 pennies were minted. Penny (British pre-decimal coin) The pre-decimal penny (1d) was a coin worth of a pound sterling. Its symbol was d, from the Roman denarius. It was a continuation of the earlier English penny, and in Scotland it had the same monetary value as one pre-1707 Scottish shilling. The penny was originally minted in silver, but from