War workers at the Bureau of Mines in Golden, Colorado, led by Dr. Moore, can be seen in the photograph preparing metallic tungsten, a crucial metal for the war effort. The image was taken in November 1918 and is labeled as Photographer Number 56678.

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

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