Posted By:
Bottom of the NinthDave,
Actually N6 is reserved for cards that have factory cuts but are too small to holder and result in a refund of grading fees. This card should be in an Authentic holder and should never have been assigned a numerical grade. The card is clearly cut or trimmed, though not done to be deceptive, but as Charlie pointed out, most likely by a kid many decades ago.
I hate to see such a gross oversite by PSA or any other grading company. It does happen. I would hope that PSA will do the proper thing and retire the card. It would be nice for the seller to contact PSA. The cost to resolve this mistake is a drop in the bucket.