I’m getting ready to buy a few coins from a gentlemen and he tones his coins for some reason, even though I’ve preached the chore multiple times. It hasn’t bothered me much because I just got some coins to fill book spots nothing special or high dollar amount. He does have a high grade 1932-D I’d say mid MS but for the love of god he did that crazy toning in the obverse. I’ve had some garbage coins before that were toned liked this and I played with them by rubbing my fingers on them slightly and it would remove the color, I will not be attempting that on this quarter though. I can only imagine if the colors rubs off that easy is there any chance acetone baths or some other technique that would remove this without rubbing or causing it to get details if graded? thanks for any advice!