Would a person actually type 147th with a space between the 147 and the th? I think not.
Bwaahhaahaa! I hate that paperclip thingy!
Uh yeah, it is possible they typed the "th", spaced it to delete the superscript and forgot to fix the problem.
Another dead giveaway is they missed a couple. In one memo the position of the superscript is exactly in the same position to the "7" as in MSWord.
I pasted both documents on a light table, speced it with my magnifier and pica ruler. Fits like a glove. Amazing how default letterspacing in MSWord just happened to fit this particular "typewriter".
Using Times New Roman. Wait until you read my post about the history of that font!