Sieving of coal and clay powder; The carbon powder is sifted in wooden sieves; as well as the dried clay pieces; larger pieces are pounded again; woodcut; p. 306; (Liber nonus); 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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Creative#:
TOP28094324
Source:
達志影像
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RM
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