Groat (coin) Groat (coin) The groat is the traditional name of a long-defunct English and Irish silver coin worth four pence, and also a Scottish coin originally worth fourpence, with later issues being valued at eightpence and one shilling. The name has also been applied to any thick or large coin, such as the "Groschen" ("grosso"), a silver coin issued by Tyrol in 1271 and Venice in the 13th century, which was the first of this general size to circulate in the Holy Roman Empire and other parts of Europe. The immediate ancestor to the groat was the French "gros tournois" or
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