Coins of the pound sterling itself was unchanged by decimalisation.) The first decimal coins – the five pence (5p) and ten pence (10p) — were introduced in 1968 in the run-up to decimalisation in order to familiarise the public with the new system. These initially circulated alongside the pre-decimal coinage and had the same size and value as the existing one shilling and two shilling coins respectively. The fifty pence (50p) coin followed in 1969, replacing the old ten shilling note. The remaining decimal coins – at the time, the half penny (p), penny (1p) and two pence (2p) — were issued in 1971 at
Halfpenny (British decimal coin) 1984. The reverse of the coin, designed by Christopher Ironside, was a representation of St Edward's Crown, with the numeral "" below the crown, and either (1971–1981) or (1982–1984) above the crown. Only one design of obverse was used on the halfpenny coin. The inscription around the portrait on the obverse was , where 19xx was the year of minting. Both sides of the coin are encircled by dots, a common feature on coins, known as beading. As on all decimal coins produced before 1984, the portrait of Queen Elizabeth II by Arnold Machin appeared on the obverse; in this