You’re right about you got whatever fonts were on a manual typewriter when you bought it. Or at least the ones I remembered with the long keys that striked the ribbon - whatever their technical term might be. However, if the ones with balls could be exchanged but I don’t know when those came out. I have an electric typewriter from the mid-70’s and it has interchangeble fonts that come on a wheel cartridge but that also uses a plastic-like ribbon which this KCOLB definitely isn’t typed with. This alleged document looks like it is typed with an inked cloth ribbon. See the light and darker shading of the letters as more or less ink is distributed. Also, some of the letters such as the “a”, “A”, and “s” show a build up of ink within the closed so slightly closed areas of the letters. As I said early this morning, I’m leaning toward a Royal model typewriter but I haven’t found which font it used.
The visual feel is quite similar to various documents I have around that era. The printed form itself (not the filled in from a typewriter) appears ok for that time. But who knows.
Also, see the top left corner? What are those two dots? Could it be from a staple? I can’t get it zoomed closer than 400% so can’t determine if the dots are holes and if the holes are ragged and if there might be staple indentations.
Those interchangable typewriter ball font cartridges were for electric typewriters I believe.
In 1964 the “fonts” would have been on the end of those narrow keys which were punched up and struck the ribbon in front of the paper. The “shift” key shifted those keys up or down to type caps.