Penny (Irish decimal coin) from 2002 on its own). Penny (Irish decimal coin) The decimal one penny (1p) () coin was the second smallest denomination of the Irish pound. It was first issued when the Irish currency was decimalised on Decimal Day, 15 February 1971. It was the second of three new designs introduced all in bronze, the others being a half-penny and a two pence coin. All featured ornamental birds designed by Irish artist Gabriel Hayes on the reverse. The coin originally had a diameter of 2.032 centimetres and mass of 3.564 grams consisting of copper, tin and zinc. This was identical to
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