Halfpenny (Irish decimal coin) particularly rare, and valuable to coin collectors - the vast majority of the 2.8 million were melted in 1987. The 1986 coin was only produced for the 1986 specimen sets and is also rare. 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
Monégasque euro coins Monégasque euro coins Monégasque euro coins feature two separate designs for the first two series of coins, and also two separate designs for the €1 and €2 coins for the first series. All the coins are inscribed with the word "Monaco" and the twelve stars of Europe. The Monégasque euro coins are minted by the Monnaie de Paris (Paris Mint). For images of the common side and a detailed description of the coins, see euro coins. In Monaco the euro was introduced in 2002. However, the first sets of coins were minted, as preparation, in 2001. Hence the first euro