Employees at the San Francisco experiment station of the United States Bureau of Mines are engaged in war work. The station, led by petroleum technologist Chester Naramore, contributes to the war effort through research and experimentation related to petroleum. This photograph was taken on November 14, 1918.

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Size: 8448px × 5862px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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