Halfpenny (British decimal coin) of new pence) alongside the new decimal coinage. The halfpenny coin's obverse featured the profile of Queen Elizabeth II; the reverse featured an image of St Edward's Crown. It was minted in bronze (like the 1p and 2p coins). It was the smallest decimal coin in both size and value. The size was in proportion to the 1p and 2p coins. It soon became Britain's least favourite coin. The Treasury had continued to argue that the halfpenny was important in the fight against inflation (preventing prices from being rounded up). The coin was demonetised and withdrawn from circulation in December
Coins of the Republic of Ireland coins used the Irish red deer design from the Irish pound coin with a mountain relief in the background and other notable differences such as the 12 stars of the European Flag surrounding the harp, quite similar to the Irish euro coins. The coins issued under the Decimal Currency Acts were finally withdrawn from circulation in 2002 by the Irish Pound Coinage (Calling In) (No. 2) Order, 2001 which revoked an earlier similar order; the date was set for 10 February 2002. The introduction of the euro was overseen by the "Euro Changeover Board of Ireland" which was a special