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 (Irish coin) the harp and the date on the right. Shilling (Irish coin) The shilling (1s) () coin was a subdivision of the pre-decimal Irish pound, worth of a pound. The original minting of the coin from 1928 until 1942 contained 75% silver; this Irish coin had a higher content than the equivalent British coin. These earlier coins were noticeably different from their later counterparts as they were of a lighter hue than the cupronickel coins minted from 1951, and they resisted wear less well. The cupronickel coin contained 75% copper and 25% nickel. The coin measured in diameter and weighed 5.655