Photograph of a Fokker CO-4 Mail aircraft at a snowy airfield, circa 1920s-1930s. Inscription: "Fokker C-4 mail plane."Inscription on envelope: "Mail plane".
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.
First flight air mail cover addressed to Master Bebo Boeing, Seattle, Washington, July 1, 1927. Stamped: "First Flight Under Contract - Chicago to San Francisco - Transcontinental Air Mail Route, Omaha, Nebraska."
First flight air mail cover addressed to William E. Boeing, Chicago, Illinois, July 1, 1927.Stamped: "First Flight Under Contract - Chicago to San Francisco - Transcontinental Air Mail Route, Omaha, Nebraska."
First flight air mail cover addressed to William E. Boeing, Chicago, Illinois, July 1, 1927. Signed by pilot Hugh Barker.Stamped: "First Flight Under Contract Chicago - San Francisco - Transcontinental Air Mail Route. Salt Lake City, Utah."
Photograph of a Boeing Model 40A air mail aircraft taking off from Elko, Nevada en route for New York, circa July 1, 1927.Inscription on verso: "Air mail leaving Elko, Nevada for N. Y. About July 1st, 1927.1st day of Boeing's operation of…
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."
International air mail cover addressed to Mrs. William E. Boeing, Seattle, Washington, from R. Ortman, Paris, France, August 7, 1928. Stamped: "Par Avion."