Jean Castaing French Inventor
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Jean Castaing is a French Inventor.
Jean Castaing is a member of the following lists: Numismatics, French inventors and 17th-century French inventors.
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| Nationality |
French
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| Occupation |
Inventor
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Jean Castaing (fl.) was a French engineer and inventor of the Castaing machine, a device used to add edge lettering to coins. Though edge lettering had existed for over a century, the earliest methods were costly and time-consuming. In 1649, Peter Blondeau introduced a new method at the Royal Mint in England, which he kept secret. Later, in 1685, Castaing proposed that his machine be used in the mints of France. His proposal was approved, and Castaing later became general manager of all the mints in the nation.
