Coin Production By Screw Press (since About 1550)
Around 1550 the German silversmith Marx Schwab invented coining with the screw press. Henry II of France (reign 1547-1559) imported the new machines: rolling mill, punch and screw press. 8 to 12 men took over from each other every quarter of an hour to maneuver the arms driving the screw which struck the medals. Henry II came up against hostility on the part of the coin makers, so the process was only to be used for coins of small value, medals and tokens. In 1645 it came into general use for minting coins.
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