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.
Puddling furnace Ball. Puddling drawing puddled ball from furnace Puddlage extraction de la boule de fer puddl du four archive org California Digital Library Walter Macfarlane PDold Images from The principles and practice of iron and steel manufacture by Macfarlane Puddling furnaces
Page 2023 Free-images.com. All images are Public Domain