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Posted By: barrysloate

Corey- Paper conservators could examine a card microscopically, since they are typically very thorough and spend a lot of time with material submitted to them.

But I don't think grading companies have that luxury of time; in a sense they are grading factories with deadlines to make. They really should spend a lot of time examining cards that are either very valuable, or ones that have a history of being altered, but I'm not sure that they do.