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 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…
Air mail cover addressed to William E. Boeing, Seattle, Washington, May 20, 1938. Includes a stamped cachet with an image of Glenn L. Martin.Stamped: "Macksburg, IA. Birthplace of Glenn L. Martin (1886-), Designer of Martin Airplanes - Air Mail Week…
First flight air mail cover addressed to Mrs. William E. Boeing, Seattle, Washington, June 22, 1940. Includes brief note informing Bertha Boeing to keep the cover if interested and return it if not.
Stamped cachet: "Seattle-Juneau, U.S. Air Mail…
Letter to Harold Mansfield, Director of Public Relations, Boeing Aircraft Company, from Donald R. Drew, November 18, 1948. Seeks information on behalf of Boeing to help answer questions from Captain William G. Lufburrow, who is writing a book on…
Letter to Harold Mansfield, Director of Public Relations, Boeing Aircraft Company, from Donald R. Drew, January 12, 1949. Asks if Mansfield received a previous letter concerning Captain William G. Lufburrow. One typed page.
Draft pages from an unidentified book, possibly a history of Boeing Company, about William E. Boeing, with handwritten corrections by Bill Boeing, Jr., circa 1950s-1960s. Three pages.