Drawing of a water powered wire mill, taken from "The Pirotechnia" by Vannoccio Biringuccio (1540). Illustration credit. For the hand powered method, see: Lost knowledge: ropes and knots.
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Drawing of a water powered wire mill, taken from "The Pirotechnia" by Vannoccio Biringuccio (1540). Illustration credit. For the hand powered method, see: Lost knowledge: ropes and knots.
