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 Theosophie Philosophie Musikinstrument Saite. Scan Deutsche Fotothek dftg color MIKCenter Berlin GmbH Abbildung Oppenheim Saiteninstrument in Pyramidenform Papier Kupferstich cm Theosophie Philosophie Musikinstrument Saite ppn Druck Deutsche Fotothek gefrdert von der Deutschen Forschungsgemeinschaft Projekt