Second soldier-miner contingent being trained in timbering a dugout at the Michigan School of Mines in Houghton, Michigan. This training is part of the war work conducted by the Bureau of Mines during World War I. Photograph taken in November 1918.

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

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