Picked up a mid 80's 52RI tele that has some "signatures/autographs" on it that I would like to remove. Luckily they are on the back & sides instead of the front, but still look ridiculous. Any ideas on how to get these off without ruining the nitro finish? I have tried Goo Gone (that appeared to burn the finish)..naptha (faded the marker a bit, but did not remove it). Maybe some kind of rubbing compound & a buffer? I have no doubt I can remove it, just trying to not dull/burn the finish. Thanks!