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.
Ludvig August Colding . en Ludvig August Colding Danish physicist and engineer Royal Library Copenhagen Denmark Georg Holtzweissig PDDenmark PDold Ludvig August Colding Files from The Portrait Collection of the Danish Royal Library
Page 2023 Free-images.com. All images are Public Domain