英和和英

出典:『Wikipedia』 (2010/10/28 19:59 UTC 版)

英語による解説

引用

Plated ware refers to articles chiefly intended for tableware consisting of an base metal or alloy covered by one of the precious metals, with the object of giving them the appearance of gold or silver. Historically, the standard amount of precious metal used was an ounce of silver per square foot of surface area (2.8cL per 930 cm²). Although items hand-plated with metal leaf date back to ancient times, large scale production dates to 1742 when Thomas Boulsover, of Sheffield, England developed a process by which silver plates were fused to base metal (generally copper) ingots by heating them in a furnace with borax. The ingots were then rolled down to a sheet, and from these sheets silver-plated articles were made.