Thanks everyone for the replies. I don't display my cards I keep them in a safe. I don't think I have a choice but to leave them be. I was hoping to at some point to have them graded is why I was wanting to see if I could remove the red stain and get a better grade. I believe this stain is permanant after carefully working for over a hour trying to remove it with a dry eraser. I was just hoping someone had a miracle solution.
