Public domain
Production. Milling machines and machine castings. Straight into the roaring flames of the cupola, the operator moves his crane with the loaded basket. With this equipment, one operator can handle many tons of material an hour, keep cupolas in continuous operation, producing many tons of molten iron
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Credit lineProduction. Milling machines and machine castings. Straight into the roaring flames of the cupola, the operator moves his crane with the loaded basket. With this equipment, one operator can handle man. 1942-01-01. United States. Office For Emergency Management, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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