Here are a few WW1 (1914 to 1918) photos that may be of some interest, from the Bain News Service photo archives, U.S. Library of Congress, Flickr: https://www.flickr.com/photos/library_of_congress/page1
No copyright restrictions.
Basic information & webpage for each photo-
The first 3 photos depict women working at a British artillery shell production factory: https://www.flickr.com/photos/library_of_congress/23625005983/ , https://www.flickr.com/photos/library_of_congress/23623572024/ , https://www.flickr.com/photos/library_of_congress/24225710946/ "English women finishing a 9.2 shell".
Photo #4: https://www.flickr.com/photos/library_of_congress/23730907800/ "Italian & captured Austrian shells".
Photo #5: https://www.flickr.com/photos/library_of_congress/23544936014/ "Swiss field Howitzer" circa 1914, more info here: http://www.switzerland1914-1918.net/weapons-and-equipment.html
Brian
No copyright restrictions.
Basic information & webpage for each photo-
The first 3 photos depict women working at a British artillery shell production factory: https://www.flickr.com/photos/library_of_congress/23625005983/ , https://www.flickr.com/photos/library_of_congress/23623572024/ , https://www.flickr.com/photos/library_of_congress/24225710946/ "English women finishing a 9.2 shell".
Photo #4: https://www.flickr.com/photos/library_of_congress/23730907800/ "Italian & captured Austrian shells".
Photo #5: https://www.flickr.com/photos/library_of_congress/23544936014/ "Swiss field Howitzer" circa 1914, more info here: http://www.switzerland1914-1918.net/weapons-and-equipment.html
Brian