Quote:
I agree with johnny, however, *if* the acetone does remove anything from the coin, there may be less (or no) toning at those spots. Pick your poison.
that is true, there may be a white spot in it's place, especially with a large spot. My 7070 type 1 slq had about 4 green spots before an acetone dip, but they weren't large enough to really leave noticable "lack of toning" marks, nor did it affect the luster or toning. Here it is post acetone dip. Maybe I just got lucky.

