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.
Dr. A.J. Kluyver . en Dr Kluyver newspaper picture found online at geheugenvannederland nl st Kluyver Kluyver op geheugenvannederland nl author other versions AnonymousEU Uploaded with Albert Kluyver
Page 2023 Free-images.com. All images are Public Domain