Air Navigation Map No. 39 (Experimental), 1932

This map depicts the corridor for flight navigation between San Diego, California, and Los Angeles, California, 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 Engineer Reproduction Plant, U.S. Army, Washington D.C., under the direction of the Information Division, Office Chief of Air Corps in 1932.