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.
Martin Ohm . Martin Ohm Martin Ohm sammlungen huberlin de HumboldtUniversitt zu Berlin Universittsbibliothek Schwab Zeichner nach Graff Fotograf by Martin Ohm PDold
Page 2023 Free-images.com. All images are Public Domain