Denarius Debasement of the coin's silver content continued after Nero. Later Roman emperors reduced its content to 3 grams around the late 3rd century. The value at its introduction was 10 asses, giving the denarius its name, which translates as "containing ten". In about 141 BC, it was re-tariffed at 16 asses, to reflect the decrease in weight of the as. The denarius continued to be the main coin of the Roman Empire until it was replaced by the antoninianus in the middle of the 3rd century. The coin was last issued, in bronze, under Aurelian between AD 270 and 275,
Threepence (Irish coin) Threepence (Irish coin) The threepence () or 3d coin was a subdivision of the pre-decimal Irish pound, worth of a pound or of a shilling. literally means "half ", the being a sixpence coin worth about the same as the Spanish (a quarter of a peseta). As with all other Irish coins, it resembled its British counterpart, as the Irish pound was pegged to the British pound until 1979. Originally it was struck in nickel and was very hard-wearing. In 1942, as nickel became more costly, the metal was changed to cupronickel of 75% copper and 25% nickel. The coin