Posted By:
MWBrian offers some good advice. Keep in mind that no two cards (T206s) are exactly the same size, so even if one half is trimmed to fit the other, the back and front will never properly fit. That's why there's so much edge wear -- it is an attempt on the part of the fraud perpetrator to create a more exact "match" between the two halves.
I really think more is made of the deceptive nature of rebacking (in these cases) than is necessary. When these fabricated cards are viewed in person, I think it's obvious that something is amiss.