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.
Dufrenoy. Pierre Armand Dufrenoy annales org html Annales des Mines PDold DEFAULTSORT Dufrenoy Armand Armand Dufrnoy de Armand Dufrnoy en OursPierreArmand PetitDufrnoy eu Pierre Armand Dufrenoy fr Armand Dufrnoy nl Armand Dufrnoy ja pt Pierre Armand Dufrenoy sv Armand Dufrnoy
Page 2023 Free-images.com. All images are Public Domain