First flight air mail cover addressed to Bill Boeing, Jr., Honolulu, Hawaii, May 28, 1937.Stamped cachet: "Primeiro Voo – Correio - Transpacific - Macau-USA."
Letter to William E. Boeing and Bertha Boeing from J. Parker Van Zandt, May 10, 1937. Sends greetings and hopes this will be added to Boeing's first flight collection. One handwritten page with first flight air mail cover.Stamped cachet: "Primeiro…
First flight air mail cover addressed to Hudson's Bay Company, Vancouver, B.C., October 18, 1938.Stamped: "First day cover - Via air mail from San Francisco."
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."
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 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 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., Seattle, Washington, from William E. Boeing, May 8, 1938.Stamped cachet: "United States Air Mail - Fairbanks-White Horse - 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."