EditorialImpeller with an imitation tortoise frame on which taupe-colored ostrich feathers are arranged in an ascending row, Impeller with an imitation tortoise-frame on which taupe-colored ostrich feathers are arranged in an ascending row. Frame: eight unadorn...
EditorialStrip of bobbin lace with fan scallop under a pattern with a zigzag and leaf-shaped forming strokes, Strip of natural-colored bobbin lace: lace. The pattern is likely to repeat itself, but the strip is too short to know for sure. The pattern consists o...
EditorialDischarge by means of a push rod pump_13, An impeller drives a gear., This moves another wheel on which a chain with larger metal bodies lies., The chain links thus convey water from the mine via a borehole, drainage, woodcut, p. 155, (Liber sextus), M...
EditorialMills powered by an impeller, A runner driven by goats moves two mills, different components of the grinders are shown, woodcut, p. 232, (Liber octavus), Manuel, Hans Rudolf (graveur sur bois), 1556, Georgius Agricola: De re metallica libri XII: quibus...
EditorialImpeller with an imitation tortoise frame on which taupe-colored ostrich feathers are arranged in an ascending row, Impeller with an imitation tortoise-frame on which taupe-colored ostrich feathers are arranged in an ascending row. Frame: eight unadorn...