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.
Fritz Foerster ca. Fritz Foerster Februar in Grnberg Schlesien September in Dresden Zeitschrift fr anorganische und allgemeine Chemie author PDold Fritz Foerster
Page 2023 Free-images.com. All images are Public Domain