Troy weight A grain is 20 mites, a mite is 24 droits, a droit is 20 perits, a perit is 24 blanks. In Scotland, the Incorporation of Goldsmiths of the City of Edinburgh used a system in multiples of sixteen. ("See Assay-Master's Accounts, 1681–1702, on loan from the Incorporation to the National Archives of Scotland".) Thus, there were 16 drops to the troy ounce, 16 ounces to the troy pound, and 16 pounds to the troy stone. The Scots had several other ways of measuring precious metals and gems, but this was the common usage for gold and silver. The Pound was
Economic reforms under Peter the Great small copper coins. The silver coins were quite large and were often cut into several parts, each part having its own turnover. As part of the monetary reform in the year 1704, a new, simple decimal system was introduced. Instead of the weight, each coin was valued by its decimal number. Eventually, Europe also started using this system, but it was much later. Minting of coins became the unconditional monopoly of the state. There were also gold coins, but they were mostly used for ceremonial purposes, as a reward to the soldiers. The ban on export of precious metals was