Public domain
Conversion. Beverage containers to aviation oxygen cylinders. After the circumferential straps are welded to the cylindrical portion, in the metal division of a large Eastern rubber factory, rough edges and accumulated weld scale are removed by a skilled workman. The twin rotary brushes, shown above
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Credit lineConversion. Beverage containers to aviation oxygen cylinders. After the circumferential straps are welded to the cylindrical portion, in the metal division of a large Eastern rubber factory, rough edg. 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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