Aero mail cover addressed to William E. Boeing, President of the Aero Club of the Northwest, Seattle, Washington, December 12, 1918. Includes "Flying" official publication stamp and 6-cent Jenny postage stamp.Stamped: "Aero Mail."
Aero mail cover addressed to William E. Boeing, President of the Aero Club of the Northwest, Seattle, Washington, September 5, 1918. Includes "Flying" official publication stamp and 16-cent Jenny postage stamp.Stamped: "Aero Mail."
Air mail cover addressed to Bill Boeing, Jr., Pasadena, California, from William E. Boeing, May 18, 1938.Stamped cachet: "Seattle National Air Mail Week, May 15-May 21."
Air mail cover addressed to Mr. O. W. Tupper, Seattle, Washington, February 2, 1927. Includes postmark stamps from Washington, D.C., Chicago, Illinois, and Pasco, Washington. One envelope.
Air mail cover addressed to William E. Boeing, care of Gerald Bliss, Postmaster, Cristobal, Canal Zone, from the Second Assistant Postmaster General, Washingont, D.C., March 16, 1929. Cover is signed by the pilot, Captain Eaker.Stamped: "Via Special…
Air mail cover addressed to William E. Boeing, Seattle, Washington, from Black and Bigelow, Incorporated, New York, August 2, 1928. Commemorates the "inauguration trip of the five cent air mail."Stamped: "Inauguration trip of the five cent air mail."
Air mail cover addressed to William E. Boeing, Seattle, Washington, May 20, 1938. Includes a stamped cachet with an image of Glenn L. Martin.Stamped: "Macksburg, IA. Birthplace of Glenn L. Martin (1886-), Designer of Martin Airplanes - Air Mail Week…
Air mail cover addressed to William E. Boeing, Seattle, Washington, May 29, 1953.Stamped: "First day of issue - American Air Mail Society - Convention Station."