Postmaster General Frank Hitchcock Delivering Pouch of U.S. Mail To Be Carried From Aviation Field To Post Office, postcard entitled, "Dominguez Aviation Grounds, Los Angeles, Calif.", January 1912

Postmaster General Frank Hitchcock Delivering Pouch of U.S. Mail To Be Carried From Aviation Field To Post Office, postcard entitled, "Dominguez Aviation Grounds, Los Angeles, Calif.", January 1912, Box: 9, item: 272. 1910 Los Angeles International Aviation Meet Research Collection, SPC-1996-001. California State University Dominguez Hills, Gerth Archives and Special Collections . https://csudharchives.libraryhost.com/repositories/6/archival_objects/38681 Accessed May 19, 2024.