World War I (1914-1918). German Army trench periscope. Latvian War Museum. Riga. Latvia.

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Size: 2160px × 3946px
Photo credit: © Prisma Archivo / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 20, 20th, army, century, early, europe, german, germans, germany, great, history, instrument, lenses, observation, periscope, trench, trenches, vision, war, world, ww1, wwi, xx