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  2. Sterling silver - Wikipedia

    en.wikipedia.org/wiki/Sterling_silver

    Sterling silver is an alloy composed by weight of 92.5% silver and 7.5% other metals, usually copper. The sterling silver standard has a minimum millesimal fineness of 925. Tiffany & Co. pitcher ( c. 1871 ) having paneled sides and repoussé design with shells, scrolls and flowers; top edge is repousse arrowhead leaf design

  3. Silver hallmarks - Wikipedia

    en.wikipedia.org/wiki/Silver_hallmarks

    "The words "silver" and "sterling silver" describe a product that contains 92.5% pure silver. Silver products sometimes may be marked 925, which means that 925 parts per thousand are pure silver. Some jewellery described as "silver plate" has a layer of silver applied to a base metal. "Coin silver" is used for compounds that contain 90% pure ...

  4. Silver standards - Wikipedia

    en.wikipedia.org/wiki/Silver_standards

    The alloy is 95.84% pure silver and 4.16% copper or other metals. The Britannia standard was developed in Britain in 1697 to help prevent British sterling silver coins from being melted to make silver plate. It was obligatory in Britain between 1697 and 1720, when the sterling silver standard was restored. It became an optional standard ...

  5. Silver - Wikipedia

    en.wikipedia.org/wiki/Silver

    Because pure silver is very soft, most silver used for these purposes is alloyed with copper, with finenesses of 925/1000, 835/1000, and 800/1000 being common. One drawback is the easy tarnishing of silver in the presence of hydrogen sulfide and its derivatives.

  6. Fineness - Wikipedia

    en.wikipedia.org/wiki/Fineness

    Sometimes claimed to have arisen as a Swiss misunderstanding of the standard required for British sterling. Usually marked with three Swiss bears. 935: used in the Art Deco period in Austria and Germany. Scandinavian silver jewellers used 935 silver after the 2nd World War; 925: (37 ⁄ 40) Sterling silver. The UK has used this alloy from the ...

  7. Hallmark - Wikipedia

    en.wikipedia.org/wiki/Hallmark

    The Sterling standard (92.5%) was restored in 1720. In 1784, the United Kingdom began charging a tax on silverware, and a further mark was added to indicate this had been paid. The mark was the monarch's head and continued to be used until 1890, when the tax was abolished. [13]

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