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
Two pence (British decimal coin) Two pence (British decimal coin) The British decimal two pence (2p) coin – often informally pronounced "two pee" – is a unit of currency equalling 2/100ths of a pound sterling. Its obverse has featured the profile of Queen Elizabeth II since the coin's introduction on 15 February 1971, the year British currency was decimalised. Four different portraits of the Queen have been used on the coin, with the latest design by Jody Clark being introduced in 2015. The second and current reverse, featuring a segment of the Royal Shield, was introduced in 2008. One penny and two pence coins are