American troops training in a field artillery school at Fort Sill, Oklahoma during World War I. Lieutenant E. N. Jackson of the Signal Corps is seen in this photograph. The soldiers are operating a Browning machine rifle, known for its ability to fire 400 shots per minute. This image was censored and released by the Censor on July 5, 1918.

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Size: 8232px × 5585px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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