I owned that exact card about 12 years ago.
It is authentic but should be in an "A" slab because of the tampered bottom and also there are creases/chips/scuffs that are recolored on the card as well. Obvious recolored area are the collar area (left of button), some of the face and one of the eyes and a few other spots I would have to see it in person again to remember. The Bottom puzzled me too, I just though it was cleanly erased. The stock and everything about the card matches authentic cards. Back upper right corner is missing the top layer of cardstock too. I even remember I bought it for $100 exactly, it was my first Keefe N162. Funny I dont think its worth much more now