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Britannia silver (6568 views - Material Database)

Britannia silver is an alloy of silver containing 11 ounces and 10 pennyweight (i.e. 11.5 troy ounces) silver in the pound troy, i.e. 23/24ths, or 95.83%, by weight 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 of "wrought plate". The lion passant gardant hallmark denoting sterling was replaced with "the figure of a woman commonly called Britannia", and the leopard's head mark of the Worshipful Company of Goldsmiths 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 and Ireland. 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 coins of the Royal Mint issued since 1997, known as "Britannias" for their reverse image, were minted in Britannia standard silver until 2012. Britannia silver should be distinguished from Britannia metal, a pewter-like alloy containing no silver.
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Britannia silver

Britannia silver

Britannia silver is an alloy of silver containing 11 ounces and 10 pennyweight (i.e. 11.5 troy ounces) silver in the pound troy, i.e. 23/24ths, or 95.83%, by weight 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 of "wrought plate". The lion passant gardant hallmark denoting sterling was replaced with "the figure of a woman commonly called Britannia", and the leopard's head mark of the Worshipful Company of Goldsmiths replaced with a "lion's head erased".[1]

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.[2]

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 and Ireland.[3]

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 coins of the Royal Mint issued since 1997, known as "Britannias" for their reverse image, were minted in Britannia standard silver until 2012.

Britannia silver should be distinguished from Britannia metal, a pewter-like alloy containing no silver.

See also


41xx steelAL-6XNAlGaAlloy 20AlnicoAlumel알루미늄알루미늄 합금알루미늄 청동Aluminium-lithium alloy아말감Argentium sterling silverArsenical bronzeArsenical copperBell metal베릴륨베릴륨구리Billon (alloy)BirmabrightBismanol비스무트황동Brightray청동Bulat steelCalamine brass주철CelestriumChinese silverChromel크로뮴Chromium hydride코발트Colored goldConstantan구리Copper hydrideCopper–tungstenCorinthian bronzeCrown goldCrucible steelCunife백동Cymbal alloys다마스쿠스 강Devarda's alloy두랄루민Dutch metalElectrical steel호박금Elektron (alloy)ElinvarFernicoFerroalloy페로세륨FerrochromeFerromanganeseFerromolybdenumFerrosiliconFerrotitaniumFerrouraniumField's metalFlorentine bronzeGalfenolGalinstan갈륨Gilding metal유리GlucydurGuanín (bronze)GunmetalHaynes InternationalHepatizonHiduminiumHigh-speed steelHigh-strength low-alloy steelHydronaliumInconel인듐InvarIron–hydrogen alloyItalmaKanthal (alloy)Kovar리튬Magnalium마그네슘Magnox (alloy)MangalloyManganinMaraging steelMarine grade stainlessMartensitic stainless steelMegalliumMelchior (alloy)머큐리MischmetalMolybdochalkosMonelMu-metalMuntz metalMushet steel니크롬니켈Nickel hydride양은Nickel titaniumNicrosilNisil노르딕 골드Ormolu퍼멀로이Phosphor bronze선철Pinchbeck (alloy)플라스틱Plexiglas플루토늄Plutonium–gallium alloy칼륨Pseudo palladiumReynolds 531Rhodite로듐Rose's metal사마륨Samarium–cobalt magnetSanicro 28스칸듐Scandium hydrideShakudōSilver steel나트륨나크땜납Speculum metalSpiegeleisenSpring steelStaballoy스테인리스강강철StelliteStructural steelSupermalloySurgical stainless steelTerfenol-DTerne주석 (원소)타이타늄TombacTool steelTumbagaType metal우라늄VitalliumWeathering steel우드 합금Wootz steelY alloyZeron 100아연지르코늄Doré bullionGoloidPlatinum sterlingShibuichi스털링 실버Tibetan silverTitanium Beta CTitanium alloyTitanium hydrideGum metalTitanium goldTitanium nitride배빗메탈Britannia metal퓨터Queen's metalWhite metalUranium hydrideZamakZirconium hydride수소헬륨붕소질소산소플루오린메테인Mezzanine원자

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