I just picked up a PSA10 Griffey UD 2nd year error card with no copyright on the back. I never knew this card existed till recent, but had to own it. It has a low pop of only 17. Here is a link if you guys arent familiar with it. This card is not mine...just a random one on eBay.
https://www.ebay.com/itm/1990-Upper-...wAAOSwOh9axlA6