Browse Items (1 total)
- Source is exactly "The William E. Boeing Sr. Papers (2005-10-06-B), Box 3, Folder 57"
[Letter to Mr. Ortmann from William E. Boeing, November 10, 1917]
![[Letter to Mr. Ortmann from William E. Boeing, November 10, 1917]](https://digitalcollections.museumofflight.org/files/square_thumbnails/fb0d1b68d93c1be7abec206f010632c3.jpg "[Letter to Mr. Ortmann from William E. Boeing, November 10, 1917]")
Letter to Mr. Ortmann from William E. Boeing, November 10, 1917. States that when checks are sent to his office for signature, they must be accompanied by approved voucher. One typed page.