I'm no expert, but if I had wanted to imitate a typewriter I would have chosed "Courier" (or a least "Courier New"). What a total dork.
I typed hundreds, probably a couple thousand, of pages of letters and forms in the Army on a mechanical typewriter, on dates after the documents in question. It was different branch, a different place, but the tone and content do not ring true. The Battalion S-1 shop may have had one Selectric, but for the most part we used mechanical machines. The notion that some low level ANG unit somewhere had an IBM Executive is risible on its face.
BTW, it was highly unusual for an officer, especially a LTC (only abbreviation I ever recall seeing), to type his own forgeries, I mean letters.
And would a Lt Col type up his own memos instead of his secretary? What about all those official letter head papers/forms that come from the base print shop? Curious minds need to know.
Then we need to know much more about those Regs sited in the memo. Just exactly what do they instruct GW to go do. Every Reg tells exactly what you are supposed to do.
HERE"S THE PROOF:
http://img41.exs.cx/my.php?loc=img41&image=60minbusted.swf