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OSP Pair of table salts, the interiors gilded to prevent corrosion. 'Bleeding' of the copper can be seen on the rims. Old Sheffield Plate (or OSP) is the name generally given to the material developed by Thomas Boulsover in the 1740s, a fusion of copper and sterling silver [1] which could be made into a range of items normally made in solid silver. [2]
"The words "silver" and "sterling silver" describe a product that contains 92.5% pure silver. Silver products sometimes may be marked 925, which means that 925 parts per thousand are pure silver. Some jewellery described as "silver plate" has a layer of silver applied to a base metal. "Coin silver" is used for compounds that contain 90% pure ...
Household silver or silverware (the silver, the plate, or silver service) includes tableware, cutlery, and other household items made of sterling silver, silver gilt, Britannia silver, or Sheffield plate silver. Silver is sometimes bought in sets or combined to form sets, such as a set of silver candlesticks or a silver tea set.
The factory added to its products sterling goods and high-grade nickel-silver-plated ware, both flat and hollow. Still later, by experiment, Mr. Wallace devised a new process of manufacture from steel. It made a less bulky, firmer, and a lighter base for silver plating. Also in 1871, Wallace, his sons, and sons-in-law formed a new company.
One of the most exhibited ISC design objects is the space-age looking urn designed by Eliel Saarinen (1934) for Wilcox Silver Plate Co. / International Silver Company. [7] The urn was exhibited in the exhibition St. Louis Modern (2015–16) [ 10 ] and Cranbrook Goes to the Movies: Films and Their Objects, 1925–1975 (2014–15). [ 11 ]
Antiques are always in style, but some have major resale value too. Here are the most valuable antiques for 2025 and beyond. 8 Antique Pieces That'll Increase in Value in 2025, According to Experts
Gorham Silver was founded in 1831 in Providence, Rhode Island by Jabez Gorham, [3] a master craftsman, in partnership with Henry L. Webster. [4] The firm's chief product was spoons of coin silver. The company also made thimbles, combs, jewelry, and other small items.
Whether silver plating or pure silver, the composite of the metal will tarnish when exposed to air and sulfur. Tarnish is a chemical reaction on the surface of metal (copper, brass, silver, etc.) and causes a layer of corrosion. In the case of silver tarnish, the silver combines with sulfur and forms silver sulfide (Ag 2 S), which is