The Selectric Composer was proportional.
http://ibmcomposer.org/SelComposer/brochure.htm
>>The Selectric Composer was proportional.
Yes, but the Selectric Composer did not kern. I just got off the phone with my old mentor, I learned to use an IBM Composer in his shop, and he confirmed that it did not kern.
The Varitype kerned, so maybe the document was produced on a Varitype machine, in a print shop, and maybe Killian was a professional typesetter just using his Varityper.
Otherwise, it might have been produced on a Linotype machine, which filled half a room.
Of course, the machine had to use Times New Roman with the exact same kerning and leading.
Was Killian a professional typesetter? Did he ordinarily use a Varitype or a Linotype for his correspondence?