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,
Silver Dragon (coin) Silver Dragon (coin) Silver Dragon coins, also sometimes known as Dragon dollars, are silver coins issued by China, Japan and later Korea for general circulation in their own countries. Featuring a dragon on the obverse of Japanese and Korean issues and on the reverse of Chinese issues, all were inspired by the silver Spanish dollar which following its introduction into the region in the 16th Century had set the standard for a de facto common currency for trade in the Far East, this specification being a weight of 27.22 grams and a fineness of .900; the coin thus contained 24.5