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A hallmark is an official mark or series of marks struck on items made of metal, mostly to certify the content of noble metals—such as platinum, gold, silver and in some nations, palladium. In a more general sense, the term hallmark is used to refer to any standard of quality.
Assay offices are institutions set up to assay (test the purity of) precious metals. This is often done to protect consumers from buying fake items. Upon successful completion of an assay (i.e. if the metallurgical content is found be equal or better than that claimed by the maker and it otherwise conforms to the prevailing law) the assay offices typically stamp a hallmark on the item to ...
The hallmark indicates the amount of precious metal in the alloy in parts per thousand (the millesimal fineness). In addition to indicating the town where the item was marked, a unique sponsor's or maker's mark identifies the item's origin and a date letter to represent the year of marking. Traditional hallmarks
The assay office marks - from left to right, London, Birmingham, Sheffield, and Edinburgh. The Edinburgh Assay Office is the last remaining Assay Office in Scotland and one of four which remain in the United Kingdom. The Edinburgh Assay Office traces its hallmarking history back to 1457 [1] when the first hallmarking act of Scotland was created ...
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 ...
5 mark, 1.9912 g (1.7921 g gold) 10 mark, 3.9825 g (3.5842 g gold) 20 mark, 7.965 g (7.1685 g gold) The 20 mark is the most seen and offers a variety of different types that were mass-produced and therefore can be purchased at a low premium above each coin's melt value.
Camille Le Tallec has preserved and created in its studio more than 375 Limoges porcelain decorative patterns signed by the Le Tallec's marks.There were realized in the French technical tradition of the 18th and 19th centuries, developed for the Sèvres porcelain. [1]
This hallmark consists of a bee in the center surmounted by 3 stars and surrounded by the letters CC, all placed in a hexagon. Since 1935, Christofle's master mark uses the same symbols with the letters CC and a diamond-shaped surround. The silver and/or gold metal hallmarks used by the silversmith are as follows: