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					Originally Posted by SetBuilder  I'm not sure about this.  The cardstock has to be multi-layered in order to separate the card in two, or else it's really hard to do.  I can separate bookboard in two for example.  Because of it's thickness.
 Cardboard is made the same way as paper.  If it's really thick like bookboard, it's layered.
 
 A T-206 card is sort of thin compared to cardboard.  I think it's a single layer like a really thick piece of paper (high gsm).
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 And you would be wrong. Take a look at chapter 11 of Dave Jamieson's book Mint Condition. Called "A Visit to the Doctor", the author spent a day with a paper restorer (let's leave him nameless) who demonstrated how you separate a card in two, say a T206, and attach a new back to it. He did say it takes quite a bit of skill, but someone with practice can do it. I haven't read the book in several years, but as I recall as an experiment they sent one of the Frankenstein cards to a grading service and it came back with a numerical grade.
So I correct my statement that it is easy to do, but it can be done and has been done.