There are millions of graded cards and a significant portion likely is altered, although what that number is is anyone's guess. They (BODA) cannot possibly review even a fraction and for most of those no prior scan is going to exist. They've done a remarkable job to make as many connections as they have, but the vast vast majority of altered cards are IMO not capable of being outed by this process.
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Net 54-- the discussion board where people resent discussions. 
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Last edited by Peter_Spaeth; 11-19-2019 at 05:10 PM.
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