Pinchbeck (alloy) Pinchbeck (alloy) Pinchbeck is a form of brass, an alloy of copper and zinc, mixed in proportions so that it closely resembles gold in appearance. It was invented in the 18th century by Christopher Pinchbeck, a London clockmaker. Since gold was only sold in 18-carat quality at that time, the development of pinchbeck allowed ordinary people to buy gold 'effect' jewellery on a budget. The inventor allegedly made pinchbeck jewellery clearly labelled as such. Pinchbeck jewellery was used in places like stagecoaches where there was a risk of theft. Later dishonest jewellers passed pinchbeck off as gold; over the years
Bronze and brass ornamental work to some extent replaced iron for railings, balconies and staircases, in connection with architecture; the style adopted is stiffly classical, which does not call for a very large amount of ornamentation, and the metal has the merit of pleasant appearance and considerable durability. Brass is an alloy composed of copper and zinc, usually for sheet metal, and casting in the proportion of seven parts of the former to three of the latter. Such a combination secures a good, brilliant colour. There are, however, varieties of tone ranging from a pale lemon colour to a deep golden brown, which depends upon