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,
Sixpence (Irish coin) minting decimal coins. However, the coin ended up being withdrawn instead, never to become a decimal-based coin; it remains the last pre-decimal coin to come off the production run. Sixpence (Irish coin) The sixpence (6d, ) coin was a subdivision of the pre-decimal Irish pound, worth of a pound or of a shilling. The Irish name ("reul") is derived from the Spanish "real". The coin was originally struck in nickel, like the threepence coin, and was very well wearing. The metal was changed to cupronickel in 1942 as nickel increased in value; this coin, which consisted of 75% copper and