Public domain
Antiaircraft gun carriage. Inspection of thirty-seven millimeter anti-aircraft 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. War
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineAntiaircraft gun carriage. Inspection of thirty-seven millimeter anti-aircraft 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.
Similar works
Women in defense. This Middlewestern plant has converted not only its machinery but also its skilled labor force from the peacetime production of electric fans and motors to the war production of twenty-millimeter shell boosters. Here a veteran employee of the plant's experimental division teaches a
Untitled
Bureau of Standards designs mechanical batter to determine liveliness of baseballs. Washington, D.C., Feb. 21. Using a newly designed apparatus, the U.S. Bureau of Standards today began experiments to determine the relative home-run qualities of American, National and International baseballs. In con
Untitled
Untitled
NO CAPTION