I do not if its a trend but by your exasperation … I have seen a lot of coins come out of NGC lately as Details - Questionable color. I hope this is not one of those as it looks nice to me ..
Alright here it is. IMO this one should fall into the 64 or 65 range. NGC hasn't been grading dark Lincolns properly IMO. 63BN should be for a Lincoln lacking any toning and less luster with flatter details. This coin is gorgeous in hand and better than 63.