This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
blackandwhite monochrome people black and white New Zealand soldiers inspect their gas masks following shell gas bombardment during the second Somme campaign. Photograph taken Bertrancourt France April by Henry Armytage Sanders. Inscriptions Inscribed Photographer's title on negative bottom left H. Quantity bampampw original negatives.