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Sterling Silver
Sterling Silver is an alloy of silver containing
92.5% by weight of silver and 7.5% by weight of other metals,
usually copper. The sterling silver standard has a minimum millesimal fineness of 925.
Fine Silver
(99.9% pure) is generally too soft for producing large functional
objects; therefore, the silver is usually alloyed with copper to
give it strength, while at the same time preserving the ductility
and beauty of the precious metal. Other metals can replace the
copper, usually with the intent to improve various properties of the
basic sterling alloy such as reducing casting porosity, eliminating
firescale, and increasing resistance to tarnish.
These replacement metals include germanium, zinc and
platinum, as well as a variety of other additives, including silicon
and boron. A number of alloys, such as Argentium sterling silver
have appeared in recent years, formulated to lessen firescale or to
inhibit tarnish, and this has sparked heavy competition among the
various manufacturers, who are rushing to make claims of having the
best formulation. However, no one alloy has emerged to replace
copper as the industry standard, and alloy development is a very
active area.
Origin of the alloy metal
Although the origin of the word "sterling" is controversial, there
is general agreement that the sterling alloy originated in
continental Europe, and was being
used for commerce as early as the 12th century in the
area that is now northern Germany.
Etymology
The earliest attestation of the term is in Old French form esterlin,
in a charter of the abbey of Préaux, dating to either 1085 or 1104.
A 13th century document, Ordericus Vitalis has the Latin forms libræ
sterilensium and libræ sterilensis monetæ. The word in origin refers
to the newly introduced Norman silver penny.
The most plausible etymology is derivation from a late Old English
is the word steorling, meaning 'coin with a star', as
some early Norman pennies were imprinted with a small star.
There are a number of obsolete hypotheses. One suggests a connection
with starling, and another supposed connection with easterling, a
term for natives of the Baltic or the Hanse towns of eastern
Germany. This etymology is itself medieval, suggested by Walter de
Pinchebek (ca. 1300) with the explanation that the coin was
originally made by moneyers from that region (OED).
The height of the silver craze was during the 50-year period from
1870 to 1920. Flatware lines during this period sometimes included
up to 100 different types of pieces. In conjunction with this, the
dinner went from three courses to sometimes ten or more. There was a
soup course, a salad course, a fruit course, a cheese course, an
antipasto course, a fish course, the main course and a pastry or
dessert course.
Individual eating implements often included forks
(dinner fork, place fork, salad fork, pastry fork, shrimp or
cocktail fork), spoons (teaspoon, coffee spoon, demitasse spoon,
bouillon spoon, gumbo soup spoon, iced tea spoon) and knives (dinner
knife, place knife, butter spreader, fruit knife, cheese knife).
This was especially true during the Victorian time period, when
etiquette dictated that nothing should be touched with one's
fingers.
Serving pieces were often elaborately decorated and pierced and
embellished with ivory, and could include any or all of the
following: carving knife and fork, salad knife and fork, cold meat
fork, punch ladle, soup ladle, gravy ladle, casserole serving spoon,
berry spoon, lasagna server, macaroni server, asparagus server,
cucumber server, tomato server, olive spoon, cheese scoop, fish
knife and fork, pastry server, petit four server, cake knife, bon
bon spoon, tiny salt spoon, sugar sifter or caster and crumb remover
with brush.
Flatware sets were often accompanied by tea services, hot water
pots, chocolate pots, trays and salvers, goblets, demitasse cups and
saucers, liqueur cups, bouillon cups, egg cups, sterling plates,
napkin rings, water and wine pitchers and coasters, candelabra and
even elaborate centerpieces.
In fact, the craze with sterling even extended to business (sterling
page clips, mechanical pencils, letter openers, calling card boxes,
cigarette cases), to the boudoir (sterling dresser trays, mirrors,
hair and suit brushes, pill bottles, manicure sets, shoehorns,
perfume bottles, powder bottles, hair clips) and even to children
(cups, flatware, rattles, christening sets).
A number of factors converged to make sterling fall out of favor
around the time of World War II. The cost of labour rose (sterling
pieces were all still mostly hand-made, with only the basics being
done by machine). Only the wealthy could afford the large number of
servants required for fancy dining with ten courses. And changes in
aesthetics resulted in people desiring simpler dinnerware that was
easier to clean.
Hallmarks
Over the years, most countries in the world have developed their own
systems of hallmarking silver. The purpose of hallmark application
is manifold:
To indicate the purity of the silver alloy used in the manufacture
or hand-crafting of the piece.
To identify the silversmith or company that made the piece.
To note the date and/or location of the manufacture.
Silver - the Metal of Today
In addition to the uses of sterling silver mentioned above, there
are some little known uses of sterling:
Medical Instruments
Evidence of silver and/or silver-alloy surgical and
medical instruments has been found in civilisations as early as Ur,
Hellenistic-era Egypt and Rome, and their use continued until
largely replaced in Western countries in the mid to late 20th
century by cheaper, disposable plastic items. Its natural
malleability is an obvious physical advantage, but it also exhibits
medically-specific utility, including the fact that it is naturally
aseptic, and, in respect of modern medical practices, it is
resistant to antiseptics, heat sterilisation and body fluids.
Musical Instruments
Due to sterling silver having a special sound
character, some brass wind instrument manufacturers use 92.5%
sterling silver as the material for making their instruments,
including the flute and saxophones. For example, some leading
saxophone manufacturers such as Selmer and Yanagisawa have crafted
some of their saxophones from sterling silver, which they believe
will make the instruments more resonant and colourful in timbre.
Tarnish and Corrosion
DO NOT ATTEMPT TO CLEAN ANY
VALUABLE WITHOUT EXPERT PROFESSIONAL ADVICE
As the purity of the silver decreases, the problem of
corrosion or tarnishing increases.
Chemically, silver is not very reactive — it does not react with
oxygen or water at ordinary temperatures, so does not easily form a
silver oxide. However, other metals in the alloy, usually copper,
may react with oxygen in the air.
The black silver sulfide (Ag2S) is among the most insoluble salts in
aqueous solution, a property that is exploited for separating silver
ions from other positive ions.
Sodium chloride (NaCl) or common table salt is known to corrode
silver-copper alloy, typically seen in silver salt shakers where
corrosion appears around the holes in the top.
Several products have been developed for the purpose of polishing
silver that serve to remove sulfur from the metal without damaging
or warping it. Because harsh polishing and buffing can permanently
damage and devalue a piece of antique silver, valuable items are
typically hand-polished to preserve the unique patinas of older
pieces. Techniques such as wheel polishing, which are typically
performed by professional jewelers or silver repair companies, are
reserved for extreme tarnish or corrosion.
PLEASE SEEK
PROFESSIONAL ADVICE BEFORE YOU BUY OR SELL GOLD, SILVER & COINS.
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