Separation of silver and copper, Lead blocks are melted on the hearth in the fire, the liquid lead is then scooped up in copper pans, there the lead cakes cool, woodcut, p. 401, (Liber undecimus), Manuel, Hans Rudolf (graveur sur bois), 1556, Georgius Agricola: De re metallica libri XII: quibus officia, instrumenta, machinae, ac omnia denique ad metallicam spectantia, non modo luculentissime describuntur, sed & per effigies (...). Basileae: [Froben], 1556

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Separation of silver and copper, Lead blocks are melted on the hearth in the fire, the liquid lead is then scooped up in copper pans, there the lead cakes cool, woodcut, p. 401, (Liber undecimus), Manuel, Hans Rudolf (graveur sur bois), 1556, Georgius Agricola: De re metallica libri XII: quibus officia, instrumenta, machinae, ac omnia denique ad metallicam spectantia, non modo luculentissime describuntur, sed & per effigies (...). Basileae: [Froben], 1556.

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