Public domain
Three-inch A.A. cartridge cases. Antiaircraft cartridge cases are unloaded from a stress-annealing furnace which has made them soft, uniform and ductile, ready for succeeding machine operations. The big Midwest plant doing this work is ideally equipped for volume production of war necessities like t
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Credit lineThree-inch A.A. cartridge cases. Antiaircraft cartridge cases are unloaded from a stress-annealing furnace which has made them soft, uniform and ductile, ready for succeeding machine operations. The b. 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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