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
Shilling (British coin) coins was determined by the market price of the metal contained within them. This debasement was recognised as a mistake, and during Elizabeth's reign newly minted coins, including the testoon (now known as the shilling), had a much higher silver content and regained their pre-debasement value. Shillings were minted during the reign of every British monarch following Edward VI, as well as during the Commonwealth, with a vast number of variations and alterations appearing over the years. The Royal Mint undertook a massive recoinage programme in 1816, with large quantities of gold and silver coin being minted. Previous issues of