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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 black. The original silver surface can be restored if the layer of silver sulfide is removed. [4]
Derveni krater, bronze, 350 BC, height: 90.5 cm (35 1 ⁄ 2 in.), Inv. B1, Archaeological Museum of Thessaloniki, after cleaning and conservation. Conservation and restoration of metals is the activity devoted to the protection and preservation of historical (religious, artistic, technical and ethnographic) and archaeological objects made partly or entirely of metal.
The Old Bethpage Village Restoration is a 209-acre (0.85 km 2) recreated living museum village in Old Bethpage, New York. [1] The village opened in 1970 with dozens of historic structures that had been saved from demolition by Nassau County. [2] Costumed actors provide demonstrations of 19th-century life. It is the site of the annual Long ...
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Revere Copper and Brass ranked 96th among United States corporations in the value of World War II military production contracts. [7] By 1938, James M. Kennedy, an employee, had invented copper-clad cookware, which went into production and is now known as Revere Ware .
An article in The New York Times of May 31, 1986, reported that inspection crews overseeing the restoration efforts had noticed several months earlier that a 5-foot-long (1.5 m) armature bar near one of the arms had been stamped with the forty names of the forty iron workers who had installed the armatures. The bar, which had to be replaced ...
At the time, the owners of the Palace Theatre painted all the brass in the theater white, so that when the government came in, they were tricked into thinking the theater contained no brass. The brass was left this way and generally forgotten until the recent renovation, when the paint was removed and the rare brass ornamentation was ...
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