Britannia silver
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Britannia silver is an
alloy An alloy is a mixture of chemical elements of which in most cases at least one is a metal, metallic element, although it is also sometimes used for mixtures of elements; herein only metallic alloys are described. Metallic alloys often have prop ...
of
silver Silver is a chemical element; it has Symbol (chemistry), symbol Ag () and atomic number 47. A soft, whitish-gray, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. ...
containing 11 ozt 10 dwt (i.e. 11½ troy oz.) silver in the pound troy, equivalent to , or 95.833% by weight (
mass Mass is an Intrinsic and extrinsic properties, intrinsic property of a physical body, body. It was traditionally believed to be related to the physical quantity, quantity of matter in a body, until the discovery of the atom and particle physi ...
) silver, the rest usually being
copper Copper is a chemical element; it has symbol Cu (from Latin ) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orang ...
. This standard was introduced in
England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...
by Act of Parliament in 1697 to replace
sterling silver Sterling silver is an alloy composed mass fraction (chemistry), by weight of 92.5% silver and 7.5% other metals, usually copper. The sterling silver silver standards, standard has a minimum millesimal fineness of 925. ''Fineness, Fine silver'' ...
(92.5% silver) as the obligatory standard for items of "wrought plate". The lion passant gardant
hallmark A hallmark is an official Mark (sign), 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 ''Wikti ...
denoting sterling was replaced with "the figure of a woman commonly called
Britannia The image of Britannia () is the national personification of United Kingdom, Britain as a helmeted female warrior holding a trident and shield. An image first used by the Romans in classical antiquity, the Latin was the name variously appli ...
", and the leopard's head mark of the Worshipful Company of Goldsmiths (in London) replaced with a "lion's head erased". Britannia standard silver was introduced as part of the great recoinage scheme of William III from 1696, when attempts were made to limit the clipping and melting of sterling silver coinage. A higher standard for wrought plate meant that sterling silver coins could not easily be used as a source of raw material because additional fine silver, which was in short supply at the time, would have to be added to bring the purity of the alloy up to the higher standard. Britannia silver is considerably softer than sterling, and after complaints from the trade, sterling silver was again authorised for use by silversmiths from 1 June 1720, and thereafter Britannia silver has remained an optional standard for hallmarking in the
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
and
Ireland Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...
. Since the hallmarking changes of 1 January 1999, Britannia silver has been denoted by the millesimal fineness hallmark 958, with the symbol of Britannia being applied optionally. The silver
bullion Bullion is non-ferrous metal that has been refined to a high standard of elemental purity. The term is ordinarily applied to bulk metal used in the production of coins and especially to precious metals such as gold and silver. It comes from ...
coins of the
Royal Mint The Royal Mint is the United Kingdom's official maker of British coins. It is currently located in Llantrisant, Wales, where it moved in 1968. Operating under the legal name The Royal Mint Limited, it is a limited company that is wholly ow ...
issued since 1997, known as " Britannias" for their reverse image, were minted in Britannia standard silver until 2012, when they switched to 999 pure silver. Britannia silver should be distinguished from Britannia metal, a
pewter Pewter () is a malleable metal alloy consisting of tin (85–99%), antimony (approximately 5–10%), copper (2%), bismuth, and sometimes silver. In the past, it was an alloy of tin and lead, but most modern pewter, in order to prevent lead poi ...
-like alloy containing no silver.


See also

*
Sterling silver Sterling silver is an alloy composed mass fraction (chemistry), by weight of 92.5% silver and 7.5% other metals, usually copper. The sterling silver silver standards, standard has a minimum millesimal fineness of 925. ''Fineness, Fine silver'' ...


References


Bibliography

* {{DEFAULTSORT:Britannia Silver 1697 establishments in England Silversmithing Silver Precious metal alloys