A photograph taken on December 17, 1917, shows workers at a Minnesota steel plant in Duluth handling iron ore metal and forming ingots. The image captures a moment of industrial activity during World War One, showcasing the role of the mining industry in supporting the war effort.

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Size: 7981px × 6304px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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