Posted By:
Kevin SaucierBarry,
Yes adhesives are used. If done with any skill it is very difficult to tell from looking at the card surface or as you can see..the edges as well. The adhesives will not show through the front, back or edges. IMO this is the most arduous of any alteration, taking as much as eight tedious man-hours per card. It is also very risky, with a high probability of destroying either section.
Sloppy or inexperienced work may show signs of doctoring in many places with seeping soaking adhesives being the big one.
If you suspect quality work, scope the corner edges. Rounding or squaring sections will sometimes reveal the front/back section of the other card since that is the toughest part to perfect...IMO.
The middle card used in the example above is a t205 front with a t206 back. I sent it to a t205 expert for kicks. He could not idently the edge seams until pointed out. Scary was his words as well. I'm just hoping to give enough info to help others identify this alteraton.
Hope this helps!
Kevin Saucier