Identifier2005-10-06-B_text_255SourceThe William E. Boeing Sr. Papers (2005-10-06-B), Box 4, Folder 22DescriptionFirst 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.
[First flight air mail cover addressed to Mrs. William E. Boeing], [2005-10-06-B_text_255]. Museum of Flight Digital Collections, accessed 06/02/2026, https://digitalcollections.museumofflight.org/nodes/view/8905
![[First flight air mail cover addressed to Mrs. William E. Boeing]](/img/placeholder.gif?1762303493 "[First flight air mail cover addressed to Mrs. William E. Boeing]")