This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Fotothek df tg Bergwerk Bergbau Spille Gpel Rundganggpel. Creator Georgius Agricola Johann Becher Scan Deutsche Fotothek dftg color MIKCenter Berlin GmbH Frankfurt Main Rundganggpel Spille Papier Holzschnitt cm Bergwerk Bergbau Spille Gpel Rundganggpel ppn Druck Deutsche Fotothek gefrdert von der Deutschen Forschungsgemeinschaft