Engineer soldiers being trained on how to use oxygen rescue apparatus at the military mining school in Houghton, Michigan. This photograph was taken on November 14, 1918. It is part of the Bureau of Mines collection and carries the identification number SURECT: 56711.

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Size: 8494px × 5824px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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