Someone answered the “M.” issue — it’s printed in the form itself. Clerk only types “A.” or “P.”
TigerClaws clears up “M” question in post 18. [sorry]
There are several points of apparent authenticity in this document that make it look very much like it was generated on a manual typewriter of the 1960s era. I know them because I went to college and law school from 1961-1967 and typed all of my academic papers on either a Smith Corona manual typewriter or, later, on a Smith Corona electric.
Those points are:
1) The denisty of the chaacters varies from character to character, a characteristic of any fabric ribbon typewriter.
2) The horizontal spacing is uniform, once again characteristic of a manual typewriter of the period.
3) A carbon ribbon typewrirter or ink jet or laser computer priner would produce characters of uniform density. The density of the characters varies in a way that’s just about exclusively characteristic of a fabric ribbon typewriter.
4) A common defect of mechanical typewriters was “flying capitals” that were produced when the operator struck the character key just before the machine had shifted into upper case. Flying capitals appear in lines 6b and 16.
My conclusion from this is the document was produced on a manual typewriter of the 1960s era, meaning it’s going to be a lot harder to disprove its autheticity than it was to disprove the authenticity of the Bush TANG documents.