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The Cologne mark corresponded to about 234 grams. Like the German systems, the French poids de marc weight system considered one "Marc" equal to 8 troy ounces. [citation needed] Just as the pound of 12 troy ounces (373 g) lent its name to the pound unit of currency, the mark lent its name to the mark unit of currency.
The sovereign is a British gold coin with a nominal value of one pound sterling (£1) and contains 0.2354 troy ounces (113.0 gr; 7.32 g) of pure gold.Struck since 1817, it was originally a circulating coin that was accepted in Britain and elsewhere in the world; it is now a bullion coin and is sometimes mounted in jewellery.
14 Thaler standard (16.7 grams) 18 1 ⁄ 2 Thaler standard (12.6 grams) 24, later 24 1 ⁄ 2 Gulden standard (9.5 grams of silver per Gulden) 34 Mark standard (6.9 grams of silver per Mark). The weight shown was the fine silver content in each case. This meant that the total weight of these coins could be higher due to the addition, especially ...
The old troy standard was set by King Offa's currency reform, and was in full use in 1284 (Assize of Weights and Measures, King Edward I), but was restricted to currency (the pound of pennies) until it was abolished in 1527. This pound was progressively replaced by a new pound, based on the weight of 120 silver dirhems of 48 grains. The new ...
The tower pound displayed as the weight of a pound sterling of 240 early silver pennies (original pennyweight) A tower pound is equal to 12 tower ounces and to 5,400 troy grains, which equals around 350 grams. [30] The tower pound is the historical weight standard that was used for England's coinage. [31]
In the Middle Ages, an English penny's weight was literally, as well as monetarily, 1 ⁄ 20 of an ounce and 1 ⁄ 240 of a pound of sterling silver. At that time, the pound unit in use in England was the Tower pound, equal to 7,680 Tower grains (also known as wheat grains). The medieval English pennyweight was thus equal to 32 Tower grains.
The weight of the English penny was fixed at 22 + 1 ⁄ 2 troy grains (about 1.46 grams) by Offa of Mercia, an 8th-century contemporary of Charlemagne; 240 pennies weighed 5,400 grains or a tower pound (different from the troy pound of 5,760 grains). The silver penny was the only coin minted for 500 years, from c. 780 to 1280.
In Homer's poems, it is always used of gold and is thought to have been quite a small weight of about 8.5 grams (0.30 oz), approximately the same as the later gold stater coin or Persian daric. In later times in Greece, it represented a much larger weight, approximately 3,000 times as much: an Attic talent was approximately 26.0 kilograms (57 ...