Posted By:
ScottI'm guessing the current slabbing scenario would be: the grader takes a look at an item and if there is no reason to suspect monkey-business (low value card, etc.) they rely on their own "human eye-related" skills and training.
But let's say a t206 Eddie Plank in vg condition arrives in the mail - is the human eye enough? I would think that for such a card the magnifier and black light would be an automatic. But is it? What conditions have to exist for the black light/etc. to be brought out?