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 William E. Boeing, Seattle, Washington, May 29, 1953.Stamped: "First day of issue - American Air Mail Society - Convention Station."
Commemorative air mail cover addressed to Bill Boeing, Jr., Seattle, Washington, from William E. Boeing, May 19, 1938.Stamped cachet: "20th anniversary of the inauguration of regular air mail service - First National Air Mail Week - May 15-21, 1938 -…
First flight air mail cover addressed to Bill Boeing, Jr., Claremont, California, from William E. Boeing, June 20, 1940.Stamped cachet: "First Flight F.A.M. 20. Seattle, Washington. U.S. Air Mail."
First flight air mail cover addressed to Bill Boeing, Jr., Pasadena, California, from William E. Boeing, May 3, 1938.Stamped cachet: "United States Air Mail - Juneau-Fairbanks - First Flight."
First flight air mail cover addressed to Bill Boeing, Jr., Pasadena, California, from William E. Boeing, May 8, 1938.Stamped cachet: "United States Air Mail - Fairbanks-White Horse - First Flight."