As (Roman coin) as, the (2), (2), . After the as had been issued as a cast coin for about seventy years, and its weight had been reduced in several stages, a as was introduced (meaning that it weighed one-sixth of a pound). At about the same time a silver coin, the denarius, was also introduced. Earlier Roman silver coins had been struck on the Greek weight standards that facilitated their use in southern Italy and across the Adriatic, but all Roman coins were now on a Roman weight standard. The denarius, or 'tenner', was at first tariffed at ten asses, but in
Coin weights moneyers and are therefore valuable epigraphical objects. Coins weights were also known in the Carolingian Empire, where they were stamped with regular coin dyes to clarify their attribution. Islamic coin weights were introduced to Great Britain in the 9-10th century CE through the Vikings. Coin weights Coin weights are weights which were designed to weigh coins in order to assure their quality. The usage of coin weights, especially glass ones, goes back to Ptolemaic and Byzantine times. Coin weights were also known in Ancient China. In Islamic civilization, where they are called "Sanadjāt", coin weights are said to have been