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 photo border outdoor black and white Looking towards an abandoned concrete German observation and machine gun post known as 'The Tower' on the Western Front. Mounds of earth and debris occupy the foreground. Photograph taken November by Henry Armytage Sanders. Inscriptions Inscribed Photographer's title