This map depicts the corridor for flight navigation between Washington, D.C., and Uniontown, Pennsylvania, and Wheeling, West Virginia, including... Show moreThis map depicts the corridor for flight navigation between Washington, D.C., and Uniontown, Pennsylvania, and Wheeling, West Virginia, including major urban areas, roads, railroads, etc., and the location of airfields, sea-plane landings, and navigation beacons. It was compiled and produced by the Information Division, Office of Chief of Air Corps, at the Engineer Reproduction Plant, U.S. Army, Washington, D.C., in 1930 and revisioned in 1932. Show less