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.
Yaroshenko Gerd. en Alexander Gerd ru bggallery ru php id Creator Nikolaj Alexandrowitsch Jaroschenko IX PDold PDold Scientists from Russia unidentified field Portraits by Nikolai Yaroshenko
Page 2023 Free-images.com. All images are Public Domain