Copper has long been used in a variety of industries, from automotive parts and accessories to residential construction and industrial manufacturing. Among the most common uses of copper is piping found in residential homes. In recent years, copper prices have soared so high that thieves have stripped copper piping from abandoned homes to turn a profit. This precious metal was first discovered by mankind 10,000 years ago in the Middle East. In addition to homes, copper is extremely popular as a metal alloy in circulation coins because it provides corrosion resistance and stands up to the wear and tear circulation currency faces. On the obverse side of these 1 Pound Copper Bullion bars are a number of engravings consistent with the Elemental design. The central engraving on this side is the listing for copper on the period table of elements. A square contains the elemental number of copper, its label, and atomic weight. These engravings read 29, Cu, and 63.55. Additional engravings on the bar include the melting point of copper, its density, and the identifying characteristics of its weight, purity, metal content, and nation of production. Copper melts at a temperatures of 1085 C, while its density is engraved 8.92 g/cc. At the bottom, the engraving USA is featured between two stars.