Halfpenny (Irish decimal coin) Halfpenny (Irish decimal coin) The decimal halfpenny (p) () coin was the smallest denomination of the Irish pound. It was first issued when the Irish currency was decimalised on Decimal Day, 15 February 1971. It was one of three new designs introduced all in bronze and featuring ornamental birds on the reverse. The coin value was weakened by inflation and very few were produced beyond the initial run for 1971. It was removed from circulation and demonetised on 1 January 1987. The main reason that halfpennies were issued was that when shillings were decimalised they were worth five new pence,
Coins of the Manx pound the circulating coins. One reason for this is to increase sales to collectors, which can be an important source of income in small countries. The Manx pound matches the pound sterling and went decimal in 1971, with the UK, however since this date the Isle of Man has been at the forefront of coin innovation: The £1 coin was introduced on the Isle of Man in 1978, 5 years before the United Kingdom's equivalent, and there is currently a circulating £5 coin. Below are descriptions of some of the different designs in circulation from the Isle of Man. This page