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,
Crown (Australian coin) Crown (Australian coin) The Australian Crown was a coin used in the Commonwealth of Australia prior to decimalisation in 1966. The denomination was only minted in 1937 and 1938. It was of similar size and weight to the British Crown and was made of sterling silver for both its years of production. Like the British Crown, the Australian Crown was worth five shillings. The Crown was originally intended to commemorate the ascension of King Edward VIII; however, due to his abdication, it was instead struck to commemorate the ascension of King George VI. The Crown quickly lost its commemorative appeal