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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 Netherlands, Norway and Sweden also produced chandeliers, many of great size: the 16th- and 17th-century type is the well known "spider", large numbers of which were also made in England and still hang in many London and provincial churches. The Netherlands also showed a great liking for hammered work, and produced a large number of ...
One plate, the "Copper Solar Ogee Deity", is a 21-inch (53 cm) high repoussé copper plate depicting the profile of a dancing winged figure, wielding a ceremonial mace in its right hand and a severed head in the left. The extended, curling nose resembles a proboscis and resembles another S.E.C.C. motif, the long-nosed god maskette.
A deep red glaze with characteristic flame-like steaks of other colours. Produced by reduction firing of copper-rich glazes. Flatware Plates and dishes, as opposed to holloware vessels such as cups and jugs Flint Calcined flint, crushed then ground to fine particle size. A raw material in various ceramic bodies, used as a filler to attenuate ...
At first, they made items from copper, but from around 2150 BC [citation needed], smiths had discovered how to make bronze, which is much harder than copper, by mixing copper with a small amount of tin. With that discovery, the Bronze Age began in Great Britain. Over the next thousand years, bronze gradually replaced stone as the main material ...
Copper is known to have been traded from the Great Lakes region to other parts of North America. However, there were also other sources of copper, including in the Appalachian Mountains near the Etowah Site in Georgia. [10] The Mississippian copper plates were made by a process of annealing. Ancient copper artifacts are found over a very wide ...
For the first few years, [2] [9] [10] they were gold-plated bronze, then later (perhaps starting in the 1930s, [11] [12] [13] 1945, [14] or 1982/1983; [15] [16] [17] different sources disagree), they were made of britannia metal plated with copper then nickel silver then gold, except for three years during WWII, from 1942 to 1945, during which ...
Except for Plate B, which has two heads, all of the figures face to the right. All of the plates are missing the majority of their tail sections due to being struck by Groomes' plow. Some of the plates show more expertise in artistic design and some of the plates show more proficiency in the production of the basic copper plates.