A response to a earlier thread pointed out the IBM Selectric, which were a prevalent typewriter at the time, were capable of this type print. The individual posting used this type of print in a weekly newsletter they were publishing (at the time) so they claim.
It looks like only the Selectric II could do it. It required the person to type every line twice so the typewriter could judge proper spacing. Would a military man have an advanced top of the line typewriter and go through so much?
http://www.ibmcomposer.org/SelComposer/description.htm
I was a secretary in the 70's. The IBM Selectric had two font selections: Courier 10 and Elite 12. I think there were still a LOT of companies still using manuals. IBM also had another typewriter that had proportional spacing. I don't remember what year I used that one, but I remember that a small "i" counted for 1, and a capital W counted for 5. It was a BEAR to do columns, margins and the like. Had to count everything!! Sometime before 78 the law firm I was working for tried the newfangled Savin word processor. I don't remember what the fonts were on that one because I didn't like it and wouldn't use it. (How far I've come!!)
I typed all my high school and college papers on an IBM Selectric acquired after the Navy modernized office equipment at the 32nd St Naval Station in San Diego. That was 1973-1976. The machine was refurbished after many years in government service.
I have an IBM Selectric I use for typing forms. It isn't capable of lining up the baseline so precisely, but it IS an old machine.
However, it also can't type a curly apostrophe.