Letter Of Appreciation From Col. Sheetz For Mr. Friedman's 29 Sept 1950 Presentation At Gunter Air Force Base, Alabama : William F. Friedman : Free Download, Borrow, and Streaming : Internet Archive
LETTER OF APPRECIATION FROM THE COMMANDANT, AIR COMMAND AND STAFF SCHOOL, FOR MR. FRIEDMAN'S TALK ON "COMMUNICATIONS IN
![Letter from the Air Force To Naron in Appreciation of His Exemplary Service, 1954 : Moore, Stanford;Air Force Flight Service : Free Borrow & Streaming : Internet Archive Letter from the Air Force To Naron in Appreciation of His Exemplary Service, 1954 : Moore, Stanford;Air Force Flight Service : Free Borrow & Streaming : Internet Archive](https://archive.org/download/cacmal_000051/cacmal_000051_access.jpg)