Pinchbeck (alloy)
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Pinchbeck is a form of brass, an alloy of copper and zinc mixed in proportions so that it closely resembles gold in appearance. Invented in the 1700's by Christopher Pinchbeck, a London clockmaker. 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 and it came to mean a cheap and tawdry imitation of gold. “Where, in these pinchbeck days, can we hope to find the old agricultural virtue in all its purity?” (Anthony Trollope in Framley Parsonage)