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					Originally Posted by JamesGallo  Seriously you think PSA tests the thickness of a card!!!
 
 First, off how the hell do they do that??
 
 Second, how do they know it was't soaked and sitting under a pile of books.
 
 Third, I really don't think it would be thinner, perhaps since it is layered paper but I really don't see any way PSA could test this.
 
 James G
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 Very simply. Digital readout calipers are down to $20 now, and under $100 for a really nice one. In the old days a micrometer would have been used. same as the paper mills do to ensure consistent quality. 
Given a good sampling of known original cards it would be easy to establish a proper range of thickness just like there's a proper size range.
I have a caliper, and I could probably get a hard number based on my collection if anyones really interested.  
Steve B