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Keywords from Image Description:
Fotothek df tg Geometrie Mathematik Vermessung Quadrant. Scan Deutsche Fotothek dftg color MIKCenter Berlin GmbH Frankfurt Main Quadrant Papier Kupferstich cm Geometrie Mathematik Vermessung Quadrant ppn Druck Deutsche Fotothek gefrdert von der Deutschen Forschungsgemeinschaft Projekt Technikgeschichte Jh Verwalter Dresden