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Fotothek df tg Bergwerk Bergbau Metallurgie Kupelle Pressform Pistill Stel Prob. Creator Georgius Agricola Johann Becher Scan Deutsche Fotothek dftg color MIKCenter Berlin GmbH Frankfurt Main Pressform der Kupelle Pistill Stel Papier Holzschnitt cm Bergwerk Bergbau Metallurgie Kupelle Pressform Pistill Stel Probierwesen