First flight air mail cover addressed to William E. Boeing, Seattle, Washington, December 5, 1946.Stamped: "U.S. Air Mail, First Flight AM-77, Olympia, Washington."
First flight air mail cover addressed to William E. Boeing, Seattle, Washington, from the Glenn L. Martin Company, Cleveland, Ohio, July 1, 1934.Stamped: "Via Air Mail - On first trip of through schedule involving night flying on Transcontinental Air…
First flight air mail cover addressed to William E. Boeing, Seattle, Washington, May 19, 1938. Stamped cachet: "Aviation History, 1911-1938 - Glenn L. Martin Flies First Plane into Clay Center, Nebraska, 1911. 1911 - Pusher type plane. 1938 - Glenn…
Letter to Mr. and Mrs. William E. Boeing from Luke Luqueer, August 20, 1935. Thinks the letter and included air mail cover will be of interest if "Wiley Post makes it in his 'Winnie Mae.'" One typed page and envelope.Stamped: "First Air Mail…
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 and first flight air mail cover addressed to "Billie" [Bill Boeing, Jr.] from Donald R. Drew, November 20, 1935. Discusses social news and wishes a happy thirteenth birthday. One typed page on W. E. Boeing stationery and envelope.Stamped:…
Letter and first flight air mail cover addressed to Mrs. William E. Boeing, Seattle, Washington, from Clarice De Jarlais, Honolulu, Hawaii, March 13, 1939. Two handwritten pages on Trans-Pacific Air Mail stationery and air mail cover.Stamped cachet:…
Letter and first flight air mail cover addressed to William E. Boeing and Bertha Boeing from Gordon D. Brown, Douglas Aircraft Company, June 27, 1941. Sends cover to celebrate aviation progress.Stamped cachet: "B-19, Initial Flight of World's Largest…
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…