"Fourth edition, subject to correction". "Prepared at the direction of the Commanding General, Army Air Forces, for the Aeronautical Chart Service, by the Army Map Service, U.S. Army, Washington, D.C. from best source material available". Stamped with, "Restricted". Lambert conformal conic projection. On verso: legend, aeronautical information, and index map. This digital image has been created from an original, paper chart held at the Canadian Warplane Heritage Museum, accession number 998.109.012 (drawer 1).