Public domain
Antiaircraft gun carriage. Inspection of a thirty-seven millimeter antiaircraft gun carriage parts. With 300-plus-mile-per-hour planes for targets, antiaircraft assembly must be a precision instrument to permit the gunner to keep on his target. Inspection is as rigid as in instrument manufacture. Wa
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Credit lineAntiaircraft gun carriage. Inspection of a thirty-seven millimeter antiaircraft gun carriage parts. With 300-plus-mile-per-hour planes for targets, antiaircraft assembly must be a precision instrument. 1941-01-01. 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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