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,
Ten shilling coin Day, being fifty new pence in value. Ten shilling coin The ten shilling (10s) () coin was a one-off commemorative coin issued in Ireland in 1966 to mark the 50th anniversary of the Easter Rising. Ten shillings was a subdivision of the pre-decimal Irish pound, worth of an Irish pound, making this the highest value coin in the pre-decimal system. The coin was 83.5% silver and 16.5% copper. It measured in diameter and weighed 18.144 grams, therefore containing of silver. The coin did not prove popular, and 1,270,000 of the two million produced were withdrawn and melted down. This unpopularity