I say MS64 but its hard to tell from the pic. Looks like a ding on his cheek bone maybe. A very nice wheaty for that date Congratz.
You are right, Thad. 24-S's are rough to find well struck and this one is. Nick on the nose and a flat (luster wise) reverse keeps this coin at a 63, but for a 24-S,it is still nice.
I'd take this one in a second at 63 prices even though I grade it a 62 (in my book). They are insainly hard to find floating back from collector to market... and even hard to find from dealer to market. Winner there RLM's..... would fit very nicely into my cent collection... let me know. ; )