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.
MachinePuitsSaintJoseph. fr Plan ancien de la machine d'extraction vapeur du puits SaintJoseph milieu du XIXme sicle plans anciens archives des mines author PDold Uploaded with Houillres de Ronchamp documents d'poque Puits SaintJoseph Drawings of steam engines Cross sections of steam engines
Page 2023 Free-images.com. All images are Public Domain