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.
Alfred Werner. Alfred Werner Nobel Prize in Chemistry nobelprize org html date published in in Sweden in archive org Les Prix Nobel Unknown FOTOGRAV GEN STAB LIT ANS PDold Alfred Werner
Page 2023 Free-images.com. All images are Public Domain