mining, salpetre, boiling of salpetre, after drawing by Blasius Weffring, woodcut by Hans Rudolf Manuel Deutsch (1525 - 1571), out of: Georgius Agricola (1494 - 1555), "De re metallica libri XII", Basel, 1556, Additional-Rights-Clearences-Not Available

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Photo credit: © INTERFOTO / History / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 16th, blasius, boil, boiled, boiling, brew, brewing, century, cook, cooking, drawing, graphic, graphics, historic, historical, mining, people, salpetre, saltpeter, vat, vats, weffring, woodcut, woodcuts