Public domain
Three-inch A.A. cartridge cases. Antiaircraft cartridge case produced in a large Midwest metal working plant go through the Army ordnance inspection before they are accepted
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineThree-inch A.A. cartridge cases. Antiaircraft cartridge case produced in a large Midwest metal working plant go through the Army ordnance inspection before they are accepted. 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.