Agreed that this is a poorly struck coin with several die polishing lines ... likely a late die state example of the 67,400 1922 Grant 'no star' struck.
Concur that the mark on Grant's forehead is a toning spot of some sort.
That said ... strike quality is alas not considered a significant element of technical grading ... and as such this coin is likely at a minimum an unattractive MS63 example.
Grading is subjective ... and without the coin in hand I can not fault the PCGS MS64 grade ... although an experienced collector with knowledge of the strike characteristics of the series would have passed on this particular coin.
David
Take a look at my other hobby ...
http://www.jk-dk.art