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
Quarter (Canadian coin) Quarter (Canadian coin) The quarter, short for quarter dollar, is a Canadian coin worth 25 cents or one-fourth of a Canadian dollar. It is a small, circular coin of silver colour. According to the Royal Canadian Mint, the official name for the coin is the 25-cent piece, but in practice it is usually called a "quarter", much like its American counterpart. The coin is produced at the Royal Canadian Mint's facility in Winnipeg, Manitoba. From 1920 until 1967 the quarter contained 0.15 troy ounces of silver—one quarter as much as the silver dollar (0.60 ozt), one half as much as