Sterling silver – dj light equipment – led laser lights Manufacturer

Origin of the alloy metalAlthough 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. EtymologyThe earliest attestation of the term is in Old French form esterlin, in a charter of the abbey of Praux, dating to either 1085 or 1104. The english chronicler Orderic Vitalis (1075 – c. 1142) uses the Latin forms libr sterilensium and libr sterilensis monet. The word in origin refers to the newly introduced Norman silver penny.The most plausible etymology is derivation from a late Old English *steorling “[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 This etymology is itself medieval, suggested by Walter de Pinchebek (ca. 1300) with the explanation that the coin was originally made by moneyers from that region (OED). A century of dining regalia: the silver craze of 1840 to 194019th-century Tiffany & Co. Pitcher. Circa 1871. Pitcher has paneled sides, and repousse design with shells, scrolls and flowers. Top edge is repousse arrowhead leaf design.From about 1840 to somewhere around 1940 in the United States and Europe, sterling silver flatware became de rigueur when setting a proper table. In fact, there was a marked increase in the number of silver companies that emerged during that period.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 labor 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. HallmarksOver 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. MiscellaneousIn 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 brasswind instrument manufacturers use 92.5% sterling silver as the material for making their instruments, including the flute and saxophones. For example, some leading saxophone manufactuers such as Selmer and Yanagisawa have crafted some of their saxophones from sterling silver, which they believe will make the instruments more resonant and colorful in timbre. Tarnish and corrosionAs the purity of the silver decreases, the problem of corrosion or tarnishing increases.Chemically, silver is not very reactivet 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.The Wikibook Do-It-Yourself has a page on the topic ofPolishing silverSeveral 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. See also Tarnish, Removal. ReferencesAll About Antique Silver with International Hallmarks, 2nd printing (2007), by Diana Sanders Cinamon, AAA Publishing, San Bernardino, CA.Origins: A Short Etymological Dictionary of Modern English, by lexicographer Eric Partridge.The Oxford English Dictionary, by John Simpson and Edmund Weiner.Silver in America, 18401940: A Century of Splendor, third edition (1997), by Charles L. Venable; Harry N. Abrams, Inc., New York, NY.Tiffany Silver Flatware, 18451905: When Dining Was an Art, by William P. Hood, Jr.; 1999; published by the Antique Collectors Club Ltd., Suffolk, England.The Encyclopedia of American Silver Manufacturers, revised fourth edition (1998), by Dorothy T. Rainwater and Judy Redfield; Schiffer Publishing Ltd., Atglen, PA.The Book of Old Silver, English American Foreign, With All Available Hallmarks Including Sheffield Plate Marks, by Seymour B. Wyler; 1937; Crown Publishers, Inc., New York, NY.International Hallmarks on Silver Collected by Tardy, 5th English Language reprint (2000); original publication date unknown, date of first softcover publication 1985; author unknown; publisher unknown. External linksOnline Encyclopedia of Silver Marks, Hallmarks & Maker’s Marks, an award-winning site.v  d  eJeweleryFormsAnklet  Belt buckle  Belly chain   Bracelet  Brooch  Chatelaine  Crown  Cufflink  Earring  lapel pin  Necklace  Pendant  Ring  Tiara  Tie clip  Watch (pocket)MakingPeopleBench jeweler  Goldsmith  Jewelry designer  Lapidary  WatchmakerProcessesCasting (centrifugal, lost-wax, vacuum)  Enameling  Engraving  Filigree  Metal clay  Plating  Polishing  Repouss and chasing  Soldering  Stonesetting  Wire wrappingToolsDraw plate  File  Hammer  Mandrel  PliersMaterialsPrecious metalsGold  Palladium  Platinum  Rhodium  SilverPrecious metal alloysBritannia silver  Colored gold  Crown gold  Electrum  Platinum sterling  Shakudo  Shibuichi  Sterling silver  TumbagaBase metals/alloysBrass  Bronze  Copper  Kuromido  Pewter  Stainless steel  TitaniumMineral gemstonesAventurine  Agate  Alexandrite  Amethyst  Aquamarine  Carnelian  Citrine  Diamond  Emerald  Garnet  Jade  Jasper  Malachite  Lapis lazuli  Moonstone  Obsidian  Onyx  Opal  Peridot  Quartz  Ruby  Sapphire  Sodalite  Sunstone  Tanzanite  Tiger’s Eye  Topaz  TourmalineOrganic gemstonesAmber  Copal  Coral  Jet  Pearl  AbaloneTermsCarat (unit)  Carat (purity)  Finding  Millesimal finenessRelated topics: Body piercing  Fashion  Gemology  Metalworking  Wearable art
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Silver Jewellery making Alloys Precious metal alloysHidden categories: Articles lacking in-text citations from June 2009 All articles lacking in-text citations I am an expert from laserlightequipment.com, while we provides the quality product, such as dj light equipment , led laser lights Manufacturer, led laser lights,and more.

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