Public domain
Antiaircraft gun carriage. One of the many machine operations on a partially assembled carriage for a thirty-seven millimeter antiaircraft gun. This is a typical scene as heavy industry gets into gear in America's war program. War program production scene in one of Pennsylvania's heavy industry plan
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineAntiaircraft gun carriage. One of the many machine operations on a partially assembled carriage for a thirty-seven millimeter antiaircraft gun. This is a typical scene as heavy industry gets into gear. 1941-01-01. 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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