First flight air mail cover addressed to Mr. Donald R. Drew, Seattle, Washington, from William E. Boeing, May 8, 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 3, 1938.Stamped cachet: "United States Air Mail - Juneau-Fairbanks - First Flight."
First flight air mail cover addressed to Bill Boeing, Jr., Seattle, Washington, from William E. Boeing, May 3, 1938.Stamped cachet: "United States Air Mail - Juneau-White Horse - First Flight."
First flight air mail cover addressed to Mr. Donald R. Drew, Seattle, Washington, from William E. Boeing, May 3, 1938.Stamped cachet: "United States Air Mail - Juneau-White Horse - First Flight."
Letter and first flight air mail cover "carried on the 'Boeing Hornet Shuttle,'" August 27, 1929. Letter was carried on "the first plane to carry mail while attempting one or more round-trip non-stop flights over the New York-San Francisco air mail…
Letter to Editor, Colonist newspaper, Victoria, B.C., from William E. Boeing, March 19, 1919. Requests that they return the letter as a souvenir of first international mail between Victoria and Seattle, Washington. One handwritten page and envelope.
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."
Letter to H. K. Benson, Department of Chemistry, University of Washington, from William E. Boeing, December 11, 1917. Notifies Benson that he referred George R. Clark to Professor McKone instead of bringing his ideas to the council. One typed page.