
1) Counterfeit 2) Imitative
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https://www.crosswordclues.com/clue/pinchbeck

1) Counterfeit 2) Sham
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https://www.crosswordclues.com/clue/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 g...
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http://en.wikipedia.org/wiki/Pinchbeck_(alloy)

cheap copper and zinc alloy; spurious or trashy
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http://phrontistery.info/p.html

• (a.) Made of pinchbeck; sham; cheap; spurious; unreal. • (n.) An alloy of copper and zinc, resembling gold; a yellow metal, composed of about three ounces of zinc to a pound of copper. It is much used as an imitation of gold in the manufacture of cheap jewelry.
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http://thinkexist.com/dictionary/meaning/pinchbeck/

Invented by Christopher Pinchbeck, a watch and clock-maker, in London c1720.
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http://www.antique-marks.com/antique-terms-p.html

A gold simulant, invented circa 1720 by Christopher Pinchbeck, which is comprised of a mixture of copper and zinc.
Found on
http://www.encyclo.co.uk/local/22290

Alloy of zinc and copper that resembles gold, and often used as a misnomer for rolled gold. It was invented by Christopher Pinchbeck, a watch and clock-maker, in London c.1720. It was used for many inexpensive items, such as watch-cases, snuffboxes, seals and clasps, but was superseded by gilded metal, rolled gold and 9 carat gold.
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http://www.encyclo.co.uk/visitor-contributions.php
Pinch'beck adjective Made of pinchbeck; sham; cheap; spurious; unreal. 'A
pinchbeck throne.'
J. A. Symonds. Found on
http://www.encyclo.co.uk/webster/P/90
Pinch'beck noun [ Said to be from the name of the inventor; confer Italian
prencisbecco .] An alloy of copper and zinc, resembling gold; a yellow metal, composed of about three ounces of zinc to a pound of copper. It is much used as an imitation of gold in the manufacture of cheap jewelry.
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http://www.encyclo.co.uk/webster/P/90

Pinchbeck (also known as bath metal, Dutch gold, Dutch metal) is an alloy of 80 percent copper and 20 percent zinc once used for making cheap watch cases where it was intended to imitate gold, and more recently as a substitute for the more expensive bronze. It was invented by a London watchmaker in the 18th century.
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http://www.probertencyclopaedia.com/browse/GP.HTM

[
adj] - serving as an imitation or substitute 2. [n] - an alloy of copper and zinc that is used in cheap jewelry to imitate gold
Found on
http://www.webdictionary.co.uk/definition.php?query=pinchbeck

Gilding metal containing, variously, 6-15% zinc in early use for cheap jewellery.
Found on
https://oldcopper.org/special_topics/glossary.php
adjective serving as an imitation or substitute; `pinchbeck heroism`
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https://www.encyclo.co.uk/local/20974
No exact match found.