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
Decimal Day the 1s, 2s and 10s coins, were called in during the initial process between 1969 and 1972; the ten shilling coin, which, as recently issued and in any event equivalent to 50p, was permitted to remain outstanding (though due to silver content, the coin did not circulate). The 1s and 2s were recalled in 1993 and 1994 respectively. Pre-decimal Irish coins may still be redeemed at their face value equivalent in euro at the Central Bank in Dublin. Pre-decimal Irish coins and stamps' values were denoted with Irish language abbreviations ("scilling" ("shilling", abbreviated ""s"") and "pingin" ("penny", abbreviated ""p"")) rather