Public domain
Aluminum casting. Stronger than aluminum, magnesium castings are cleaned and polished by a grinder. The casting is placed in a specially constructed hood to prevent fires. Aluminum Industries Inc., Cincinnati, Ohio
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Credit lineAluminum casting. Stronger than aluminum, magnesium castings are cleaned and polished by a grinder. The casting is placed in a specially constructed hood to prevent fires. Aluminum Industries Inc., Ci. 1942-01-01. United States. Office Of War Information, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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