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Fineness. The fineness of a precious metal object (coin, bar, jewelry, etc.) represents the weight of fine metal therein, in proportion to the total weight which includes alloying base metals and any impurities. Alloy metals are added to increase hardness and durability of coins and jewelry, alter colors, decrease the cost per weight, or avoid ...
The BIS Hallmark is a hallmarking system for gold as well as silver jewellery sold in India, certifying the purity of the metal. [1] [2] It certifies that the piece of jewellery conforms to a set of standards laid by the Bureau of Indian Standards, the national standards organization of India. India is the second biggest market for gold and its ...
Britannia silver is an alloy of silver containing 11 ozt 10 dwt (i.e. 11½ troy oz.) silver in the pound troy, equivalent to 23, or 95.833% by weight ( mass) silver, the rest usually being copper . This standard was introduced in England by Act of Parliament in 1697 to replace sterling silver (92.5% silver) as the obligatory standard for items ...
Ornament (art) Rococo interior of the Wilhering Abbey ( Wilhering, Austria ), with a trompe-l'œil painted ceiling, surrounded by highly decorated stucco. In architecture and decorative art, ornament is decoration used to embellish parts of a building or object. Large figurative elements such as monumental sculpture and their equivalents in ...
In some countries, the testing of silver objects and marking of purity is controlled by a national assayer's office . Hallmarks are applied with a hammer and punch, a process that leaves sharp edges and spurs of metal. Therefore, hallmarking is generally done before the piece goes for its final polishing.
United States. Reed and Barton Complex, Taunton, Massachusetts. Reed & Barton was a prominent American silversmith manufacturer based in the city of Taunton, Massachusetts, operating between 1824 and 2015. Its products include sterling silver and silverplate flatware. The company produced many varieties of britannia and silver products since ...
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