Air mail cover addressed to William E. Boeing, Seattle, Washington, May 29, 1953.Stamped: "First day of issue - American Air Mail Society - Convention Station."
Air mail cover addressed to William E. Boeing, care of W. Irving Glover, Second Assistant Postmaster General, Washington, D.C., from Gerald D. Bliss, Postmaster, Cristobal, Canal Zone, March 18, 1929. Stamped: "Via Special Flight - Cristobal, Canal…
Air mail postcard addressed to William E. Boeing, Seattle, Washington, from the Des Moines Post Office, Iowa, August 10, 1928. Text reads: "Congratulations - Des Moines, IA today dispatched more than 40,000 pieces of air mail via Boeing planes for a…
Airgram to Bertha Boeing from William E. Boeing, November 28, 1928. Informs her that they left "with 773 pounds of mail, our record load out of Oakland" and details the flight. One handwritten page.
Airgram to Bertha Boeing from William E. Boeing, November 29, 1928. Describes slight delay en route from Salt Lake City, Utah to Cheyenne, Wyoming due to weather conditions in Sherman Hill [Wyoming?]. One handwritten page.