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.