thanks for all your comments. This was an oddball, NGC graded it as UNC details (reverse cleaned). I don't see any signs of hairlines or cleaning on the reverse and it is booming with luster. Maybe they think the black toning is a reaction to a dip of some sorts? Anywho, this coin looks the opposite of cleaned to me; but that was why I was wondering about a dip....since it is already "cleaned" according to NGC.





















