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.
Oberkasseler Steinbrche . Die Oberkasseler Steinbrche Ein Musterbild fr die weitere Verwstung des Siebengebirges Verein zur Rettung des Siebengebirges Fotograf Zeichner Henry PDold History of Bonn Oberkassel Bonn Quarries in North RhineWestphalia
Page 2023 Free-images.com. All images are Public Domain