Possibly MS64 but I went with MS63 because there are way too many contact marks in Lincoln's hair, face and bust. Also a decent amount of small scratches on the reverse too.
Descent looking 66. And, yes, that is a die crack. And anyone who thinks bahabully actually voted for a 63 is just as cracked.
BTW, we now have a new leader. ddoomm1 got enough guesses to get rid of his high score and now takes over the lead. Those with MORE than 20 participations lost their second worst guess. Top 10 - actually 11 with a tie. Columns are rank, name, average, and number of guesses. ddoomm1 0.500 11 mark_h 0.524 23 ldhair 0.600 22 Leadfoot 0.600 16 bahabully 0.700 22 BadThad 0.727 24 abe 0.750 13 Duke Kavanaugh 0.750 22 jallengomez 0.857 7 Shoewrecky 1.000 21 tmoneyeagles 1.000 22