[Chummy]

A 1973 IBM Selectric Typewriter Please, show me where the "th" superscript key is?

[struwwelpeter]

The 'letterhead' could have been done by the base print shop, but the date is in exactly the same font and spacing. Weird.

Looking back through some old military documents (USAF, USAF Reserves, Army & Army Reserves), I see an interesting evolution in the fonts and date formats.

Alleged letter from W's TANG commander

List of test results from USAF basic training

Proficiency report from USAF

Student rating, Army reserves

Misc. letter, Army reserves.

The TANG letter looks like some of the documents I received in the late 70s, early 1980s. Probably done on an IBM Selectric model from that time period, which didn't have an 'th' character, as I recall.