1938 (Sep. 6) Navy Mass Flight, San Diego Cal. to Pearl Harbor, Hawaii, 6¢ air mail entire bearing 4¢ Prexie (808) and 10¢ orange (562) tied by "San Diego, Cal. U.S. Nav. Air Sta. Sep 6" duplex, signed by pilot "W.P. Woods" and squadron commander "A.P. Stores", Very Fine and rare. AAMC Nos. 1312  Estimate $300 - 400. Mass flight of 12 Patrol Planes of VP Squadron Four in record breaking time flew from San Diego Cal. to Pearl Harbor arriving there the following morning. $0 (Image)