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Twenty-millimeter machine guns for planes. American power in the air grows rapidly as machine guns of the finest quality pour from production lines to arm the planes that are coming steadily from other lines. These guns, entirely completed and ready to fire, await shipment from the large converted a
Public domain

Twenty-millimeter machine guns for planes. American power in the air grows rapidly as machine guns of the finest quality pour from production lines to arm the planes that are coming steadily from other lines. These guns, entirely completed and ready to fire, await shipment from the large converted a

United States. Office For Emergency Management, Palmer, Alfred T. · 1942-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

Credit lineTwenty-millimeter machine guns for planes. American power in the air grows rapidly as machine guns of the finest quality pour from production lines to arm the planes that are coming steadily from othe. 1942-01-01. 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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