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.
Huygens Correspondance. .tif Book Huygens Christiaan Correspondance Martinus Nijhoff La Haye fre it Correspondance La Haye Martinus Nijhoff xiv di tav ill ritratto cm BEIC Institution BEIC PDold Matematica Carteggi Sec History of mathematics
Page 2023 Free-images.com. All images are Public Domain