GCI pockets
The Classic Billiards pockets I recommended are made of plastic. Once again, though, they don't leave black marks on the balls. I am sure happy with mine. Also, I am assuming you are looking for drop pockets, and not ball return.
If you're interested in used pockets, GCI, II, or III will fit. I think Sport Kings and Anniversaries may fit as well. The AMT GC lookalike has rails that will interchange with Gold Crown III's, and therefore the pockets may interchange as well.......but that's just a guess.
However, if you'll post this question in the Mechanics forum, there are some guys there that will know for sure every pocket that will fit a GCI.
Good luck to you and congratulations on buying a used Gold Crown.:thumbup:
jfe