PSA's type collection?
While we're talking about authentication, here's something I've been wondering about:
Does PSA have the world's greatest type collection? You can check that a card's printing is period with a microscope, but to check to see if the card stock is right for a particular issue you'd need to compare it to an example that you know belongs to that set. So if you send them something from a super-obscure set, does the grader have access to a known-authentic example from that set that he can compare your card to?
|