Cta
CTA I believe stands for Clarks Trading Association. They were based in Rohnert Park, California. Owner was Mike Clark.They started grading around the same time PSA started if I remember correctly. They did have some issues with graders giving favorable grades to "friends". Don't remember hearing any issues with trimmed or altered cards but that does not mean it didn't happen. They went out of business a long time ago.The thing I liked about them was the grading sheet that came with the card and noted the different t areas of imperfections on each card.
Brett
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