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
Halfpenny (Irish pre-decimal coin) Halfpenny (Irish pre-decimal coin) The halfpenny (d) () coin was the second smallest denomination of the pre-decimal Irish pound, worth of a pound or of a shilling. First issued in 1928 it ceased to be legal tender on 1 August 1969. The coin measured in diameter and weighed 5.66990 grams. The bronze coin was made up of 95.5% copper, 3% tin and 1.5% zinc. This was identical to the British halfpenny as both countries' pounds were pegged until 1979. The reverse design was by Percy Metcalfe, an English artist. The artist was given the choice of a boar, a sow