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,
Vienna Philharmonic (coin) pure silver. Unlike the reeded edge of the gold coin, the edge of the silver coin is smooth. Coins are shipped in boxes of 500, called "monster boxes." Each monster box consists of 25 tubes of 20 coins each. Sales of the silver Philharmonic have been brisk with over five million coins sold, equal to 1,800 tons of silver in the 5-year period of 2008 through 2012. The mint introduced a one ounce platinum coin with the same design as the gold and silver in 2016. Like the gold coin, it has a face value of 100. The purity is