Public domain
Bofors forty-millimeter mounts. The machine of bronze rings gears for the production of Bofors forty-millimeter anti-aircraft guns mounts and carriages at a large Midwest rubber factory involves skilled precision operations. Here an expert workman is making the final cut on a vertical turret lathe.
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineBofors forty-millimeter mounts. The machine of bronze rings gears for the production of Bofors forty-millimeter anti-aircraft guns mounts and carriages at a large Midwest rubber factory involves skill. 1941-01-01. United States. Office For Emergency Management, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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