Tony -
if you look closely, the tang in the one you mention is tapered, just not as much as the others. You can see it at the butt.
The one with smooth grip or the finger grooved one not sure which one. They where made before Griffin handled ones,Walt
Walt -
Good job, you have it narrowed it down. Not sure how you came to that conclusion since it is a Griffin Drop Point Hunter, so one would think it had a Griffin style handle. So what came first, the chicken or the egg?
So if it is one of the two, what would make one earlier than the other? Hint, the Griffin Handle is the result of the earlier knife.