Seriously. If you buy a Peace Dollar or something in an old rattler holder, but you can see green PVC on it, can the slab be submersed or a syringe be used to apply acetone to the coin while leaving it in the slab? Seems like we could save some coins in old holders that way, if it were possible. Also, I wonder if it would leave a film in the inside of the holder? @GDJMSP , @BadThad , @mikenoodle ?