AMERICAN SILVER PLATE MARKS MARKS AND HALLMARKS OF USA AND CANADA SILVERPLATE AND ELECTROPLATED SILVER MAKERS |
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This is a page of A Small Collection of Antique Silver and Objects of vertu, a 1500 pages richly illustrated website offering all you need to know about antique silver, sterling silver, silverplate, sheffield plate, electroplate silver, silverware, flatware, tea services and tea complements, marks and hallmarks, articles, books, auction catalogs, famous silversmiths (Tiffany, Gorham, Jensen, Elkington), history, oddities ...
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AMERICAN SILVER PLATE AND ELECTROPLATED SILVER - ALPHABETICAL LISTING OF MAKERS: - C -
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Marks and information in AMERICAN STERLING SILVER section |
J. CONNING |
Marks and information in AMERICAN STERLING SILVER section |
OSBORN CONRAD |
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CONTINENTAL SILVER CO - New York, NY CONTINENTAL SHEFFIELD SILVER CO - Brooklyn, NY
Two related companies using similar marks as Continental Sheffield Silver Co (195 Broadway, Brooklyn, NY) is the sale office of Continental Silver Co. Active c. 1920 to 1950. Continental Silver Co Inc. was the owner of the trade mark SILVERLOOK used on hammered aluminum ware
For a long while, missing any documented reference, the mark "C 'heraldic crown' S" has been attributed to Continental Silver Co.
A recent search (2022) in the U.S Patent Office Official Gazette (February 2, 1937) revealed that this trademark was registered (24 October 1936, No 384,736) by CROWN SILVER COMPANY, INC, Brookline, Mass., claiming its use since October 1, 1933
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Marks and information in AMERICAN STERLING SILVER section |
JOHN COOK |
Marks and information in AMERICAN STERLING SILVER section |
FRANCIS W. COOPER |
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CORBELL & Company Company established in London, England, in 1946. In 1951 Arthur Corbell moved to the
United States and established Corbell & Company in Los Angeles.
During the following years, the company expanded its activity throughout the United States, exhibiting its
wide variety of merchandise in showrooms in Atlanta, Dallas, New York, Chicago and San Francisco, which
were in addition to the headquarters in Los Angeles.
Howard White purchased the company from Arthur Corbell in the fall of 2001 after moving to Los Angeles from
England where he had been in the antique and reproduction hollowware business for over twenty-five years.
Part of their production was manufactured in Japan (certified only by a removable sticker) |
Marks and information in AMERICAN STERLING SILVER section |
CORNWELL |
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CORONET SILVER CO. INC. - Brooklyn, NY active c. 1950 |
Marks and information in AMERICAN STERLING SILVER section |
S.COTTLE & Co |
Marks and information in AMERICAN STERLING SILVER section |
THE COWELL & HUBBARD CO |
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W.I. COWLISHAW - Boston MA founded c. 1898. Succeeded in 1930 by Morton Wheelock |
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CRESCENT SILVERWARE MFG CO INC - Port Jervis, NY Founded in 1922. Moved to Port Jervis in 1939. Sold to Samuel Kirk & Son Inc. in 1977
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CROMWELL PLATE CO - Cromwell CT organized in 1881, possibly by John A. Eades. Sold to I.J. Steane of Barbour Silver Co before 1885. |
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CROSBY retail mark used for silverware produced for A. Cohen & Sons Corp. |
Marks and information in AMERICAN STERLING SILVER section |
SAMUEL T. CROSBY |
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CROWN GUILD a trademark of ROCKFORD SILVER PLATE CO |
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CROWN SILVER CO. INC - Brookline, MA active c. 1935/1950
For a long while, missing any documented reference, the mark "C 'heraldic crown' S" has been attributed to Continental Silver Co.
A recent search (2022) in the U.S Patent Office Official Gazette (February 2, 1937) revealed that this trademark was registered (24 October 1936, No 384,736) by CROWN SILVER COMPANY, INC, Brookline, Mass., claiming its use since October 1, 1933
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Marks and information in AMERICAN STERLING SILVER section |
CROWN SILVER INC |
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CROWN SILVER PLATE CO - New York, NY mark used by J.W. Johnson, NY, in 1898 |
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CROWN SILVER PLATE CO - Toronto, Ontario, Canada active about 1910/1920
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The two common forms of plated silver are Sheffield plate and silverplate/electroplate.
Sheffield Plate is a cheaper substitute for sterling, produced by fusing sheets of silver to the top and
bottom of a sheet of copper or base metal. This 'silver sandwich' was then worked into finished pieces. At
first it was only put on one side and later was on top and bottom.
Modern electroplating was invented by Italian chemist Luigi V. Brugnatelli in 1805. Brugnatelli used his
colleague Alessandro Volta's invention of five years earlier, the voltaic pile, to facilitate the first
electrodeposition. Unfortunately, Brugnatelli's inventions were repressed by the French Academy of Sciences
and did not become used in general industry for the following thirty years.
Silver plate or electroplate is formed when a thin layer of pure or sterling silver is deposited
electrolytically on the surface of a base metal.
By 1839, scientists in Britain and Russia had independently devised metal deposition processes similar to
Brugnatelli's for the copper electroplating of printing press plates.
Soon after, John Wright of Birmingham, England, discovered that potassium cyanide was a suitable
electrolyte for gold and silver electroplating.
Wright's associates, George Elkington and Henry Elkington were awarded the first patents for electroplating
in 1840. These two then founded the electroplating industry in Birmingham England from where it spread
around the world.
Common base metals include copper, brass, nickel silver - an alloy of copper, zinc and nickel - and Britannia
metal-a tin alloy with 5-10% antimony. Electroplated materials are often stamped EPNS for electroplated
nickel or silver, or EPBM for electroplated Britannia metal.
Sheffield plate by the fusion process was not made in America, but factories here did turn out quantities of
electroplated silver. In fact, it was so popular that one English firm with several variations of its name,
but all including Dixon, sold quantities of electroplated silver, issued catalogues, and even had a New York
showroom.
Today there is a great deal of American plated silver which has been treasured for years. Many families had
plated silver as well as fine sterling. Some of it was inherited; some prized for sentimental reasons.
If you have this plated ware, and it is as dear to you as fine early silver, then you are among the happy
people of this world.
On plated silver the terms 'triple' and 'quadruple' indicate the number of coatings received by the base
metal in the electroplating process. Naturally the more metal used in the plating the longer the piece
should last. Polishing and wear have taken their toll of much of this plated ware and whether pieces are
worth replating depends on their usefulness and your pleasure in them. If you like them well enough to
spend money on them, then by all means have the work done, but remember a piece is worth at market value
only the metal that is in it, the base metal under the plating being worth very little.
E.P.N.S. (Electroplated Nickel Silver) and EPBM (Electroplated Britannia Metal) are the most
common names attributed to silver plate items. But many other names are used for silver plate:
EPWM, Electroplate on White Metal, EPC, Electroplate On Copper, EPCA, Electro Plated Copper Alloy,
EPGS - Electro Plated German Silver, EPMS - Electro Plated Magnetic Silver, African Silver, Albion Silver,
Alpha Plate, Ambassador Plate, Angle Plate, Argentium, Argentine Plate, Argentum,
Ascetic, Austrian Silver, Brazilian Silver, Britanoid, Cardinal Plate, Electrum, Embassy Plate, Encore, Exquisite,
Insignia Plate, Kingsley Plate, New Silver, Nevada Silver, Norwegian Silver, Pelican Silver, Potosi Silver,
Royal County Plate, Silva Seal, Silverite, Sonora Silver, Spur Silver, Stainless Nickel, Stainless Nickel
Silver, Unity Plate, Venetian Silver, Welbeck Plate,
STERLING SILVER OF USA AND CANADA
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SILVER MANUFACTURERS: MARKS, HISTORY AND INFORMATION |
This is a page of A Small Collection of Antique Silver and Objects of vertu, a 1500 pages richly illustrated website offering all you need to know about
antique silver, sterling silver, silverplate, sheffield plate, electroplate silver, silverware, flatware, tea services and tea complements, marks and hallmarks,
articles, books, auction catalogs, famous silversmiths (Tiffany, Gorham, Jensen, Elkington, WMF, Reed & Barton, Mappin & Webb, Bateman Family), history, oddities ...
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