Base ground? Important diagnostic trait for Bolen, not Duval. (Not Always!!??!?!?!) Dig site, water or walk? Not much patina except maybe water.... Bolens are one of the most patinated points in any FL collection. The beveling is confusing and would be nicer, LOL, if it was alternately beveled, but looks like the base is "wrong" for any classic Bolen.... That being said I have found Bolens same color from saltwater/clay Tampa Bay. So it's still quanderiferous.