Quote:
Originally Posted by hellojeffy
I think those need to be witnessed by CGC in person, but I may be wrong. Unverified sigs come back in as Green label (which might bring down value).
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Exactly. You can only get the yellow label if CGC witnesses the signature and you submit it to them in person at a convention. That's why the yellows pull in such a premium over Green Labels. Green labels are could be the same exact book but without CGC witnessing the signature they will not give it a yellow label.