The holder on this one is pretty awesome. Circa 1988. INS was one of the first grading companies. Didn't grade to quite the same standards as today, but were pretty harsh on any altered surfaces from what I hear.
Guessing it's probably a coin flip between 64 and 65 with a resubmit but I like the vintage holder so going to keep this one as is. The luster on this one is exceptional which might get it the 65; it doesn't really show on the photos.