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
Five guineas (British coin) Five guineas (British coin) The British Five Guinea coin was a machine-struck currency produced from 1668–1753. It was a gold coin 37 millimetres in diameter and weighing between 41 and 42 grams. Although the coin is now known as the "five guinea" piece, during the 17th and 18th centuries it was also known as a five-pound piece, as during the reign of Charles II a guinea was worth twenty shillings — until its value was fixed at twenty-one shillings by a Royal Proclamation in 1717 the value fluctuated rather in the way that bullion coins do today. This denomination shows