Hoo-boy! PSA 10 cards from the 1968 set are certainly not unheard of, but it stands to reason that when you have a card with not 1, not 2, but 3 spectacular Hall of Fame players on it the demand for such a card in pristine condition would really be through the roof. Since this is one of a paltry 4 total copies of the card ever graded 10 by PSA, I'd be willing to guess that there are some set builders and player collectors out there that would love to own it. It's razor all around, dead centered, and crystal clear - couldn't be nicer!