I actually forgot about this coin for several years. I ised a vinegar solution and soap and water. Same thing that I have been using to help restore some metal detecting finds. I actually forgot about this coin until recently. I think there is a fine line between "cleaning" and restoring. Who knows. May have been able to save more details if I had done it years ago but back then I didn't know as much as I do now. Personally I think it looks a lot better and am glad the coin can't be destroyed any longer. I don't sell my stuff anyways. If someone makes money off it one day, it wont be me! For me it just means more to me that I was able to safely restore it with a simple vinegar bath and soap and water.