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.
Gustav Natorp. Gustav Natorp Geschftsfhrer des Vereins fr die bergbaulichen Interessen im Oberbergamtsbezirk Dortmund Source Ruhr und Lenne PDold People of Wetter Ruhr
Page 2023 Free-images.com. All images are Public Domain