I'm not going to argue because you are likely correct. But the font did not look like Courier when you used it...that's as much as I know. I know fonts at least. Spacing I'll defer to you.
The Selectric II could play some games with the spacing, but it was still a MONOSPACED font on the 'golf-ball' element. Now the exception for the Selectric line was a very limited, very EXPENSIVE IBM 'Selectric Composer', which in no way would have been used for these memos.
Now I would be interested to see if the IBM Executive could be made to type these memos if someone still had a working one with the correct typebar and paper...
dvwjr