Private P. Grenbeaux conducting steel corrosion tests at the Department of Agriculture Building in Washington, The photograph was taken on December 14, 1918, and received on December 20, 1918. It was passed by the censor on December 21, 1918.

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Size: 8341px × 5620px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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