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.
Skelette in der Tropfsteinhoehle. de Skelette in der Tropfsteinhhle um Sepia cm circa Hamburger Kunsthalle Kupferstichkabinett Caspar David Friedrich PDold Uploaded with Paintings by Caspar David Friedrich
Page 2023 Free-images.com. All images are Public Domain