Water-powered sharpener, copperplate engraving from Theatrum Machinarum Novum, Plate 35, by Georg Andreas Boeckler, Coloniae Agrippinae , 1662.
Water-powered sharpener, copperplate engraving from Theatrum Machinarum Novum, Plate 39, by Georg Andreas Boeckler, Coloniae Agrippinae , 1662.