History of the threepence the possible advent of a decimal currency at the time (see florin), when the 3d at 1/80th of a pound would not have fitted within a decimal system). Currency silver threepences from 1838 to 1926 were of identical design and cannot usually be distinguished except in the best conditions when the higher striking standard of the maundy coins stand out; this resulted in the curious legal anomaly that when the currency was decimalised in 1971 "all" silver threepences from 1870 onwards were revalued at three new pence, not just the maundy coins. Threepences were produced with both the "young head"
Coins of the Republic of Ireland Mint. The rising expense of minting coins necessitated the introduction of the twenty pence coin in 1986; the halfpenny coin was withdrawn at this time as inflation had reduced its buying power. The introduction of the Irish pound coin required the Decimal Currency Act, 1990 and this law provided for certain other matters including the issue of European Currency Unit (ECU) coins which were specifically stated not to be legal tender in the legislation, instead intended as collectors items. These ECU coins were issued in 50 ECU, 10 ECU and 5 ECU denominations, in gold, silver and silver respectively. These