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) in production the alloy composition was changed to 95.5% copper, 3% tin, and 1.5% zinc, although the weight and size remained unchanged (which was necessary because of the existence by then of large numbers of coin-operated amusement machines and public telephones). Thereafter, pennies were minted every year for the remainder of George V's reign, although only six or seven 1933 coins were minted, specifically for the king to lay under the foundation stones of new buildings; one of these coins was stolen when a church in Leeds was demolished in the 1960s, and its whereabouts is unknown. A few pennies