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From about 1840 to 1940 in the United States and Europe, sterling silver cutlery (US: 'flatware') became de rigueur when setting a proper table. There was a marked increase in the number of silver companies that emerged during that period. The height of the silver craze was during the 50-year period from 1870 to 1920.
Ninety-one (91) zolotniks have the equivalent millesimal fineness of 947[9]. Thus, the alloy contains 94.79% pure silver and 5.21% copper or other metals. [4] [5] Sterling silver has a millesimal fineness of 925. The sterling silver alloy is 92.5% pure silver and 7.5% copper or other metals.
In 1792, the gold/silver price ratio was fixed by law in the United States at 15:1, [11] which meant that one troy ounce of gold was worth 15 troy ounces of silver; a ratio of 15.5:1 was enacted in France in 1803. [12] The average gold/silver price ratio during the 20th century, however, was 47:1. [13]
The Spanish silver dollar created a global silver standard from the 16th to 19th centuries. The silver standard [a] is a monetary system in which the standard economic unit of account is a fixed weight of silver. Silver was far more widespread than gold as the monetary standard worldwide, from the Sumerians c. 3000 BC until 1873.
Silver is a chemical element; ... water filtration, jewellery, ornaments, high-value tableware and utensils ... with finenesses of 925/1000, 835/1000, and 800/1000 ...
New silver coinage was to be of .925 standard, with silver coins to be minted at 66 shillings to the troy pound. [9] Hence, newly minted shillings weighed 2 ⁄ 11 troy ounce, equivalent to 87.273 grains or 5.655 grams. The Royal Mint debased the silver coinage in 1920 from 92.5% silver to 50% silver.
For example, copper is added to the precious metal silver to make a more durable alloy for use in coins, housewares and jewelry. Coin silver, which was used for making silver coins in the past, contains 900 ‰ silver and 100 ‰ copper, by mass. Sterling silver contains 925 ‰ silver and 75 ‰ of other metals, usually copper, by mass.
For silver crowns, the grade of silver adhered to the long-standing standard (established in the 12th century by Henry II) – the Sterling Silver standard of 92.5% silver and 7.5% copper. This was a harder-wearing alloy, yet it was still a rather high grade of silver.