Public domain
Aluminum casting. Hand packing of a sand mold. The sand must be firmly packed in order to insure against tiny vents and cracks which would mar the cast. Aluminum Industries Inc., Cincinnati, Ohio
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Credit lineAluminum casting. Hand packing of a sand mold. The sand must be firmly packed in order to insure against tiny vents and cracks which would mar the cast. Aluminum Industries Inc., Cincinnati, Ohio. 1942-01-01. Palmer, Alfred T., United States. Office For Emergency Management. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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