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<p>[QUOTE=&quot;GDJMSP, post: 2705494, member: 112&quot;]No acetone won&#039;t even touch spots like that, and there are many other kinds of spots acetone won&#039;t touch either. Same thing for xylene.</p><p><br /></p><p>As for what &quot;that&quot; spot is exactly, you may have already nailed it, it may well be from a sharpie or some other similar product.</p><p><br /></p><p>The simple, but unwanted, answer is that there are some spots, quite a few in fact, that are quite difficult to remove. And one in particular, genuine carbon spots, cannot be removed even by a coin dip for they are literally in the metal and not on the metal like most spots are.</p><p><br /></p><p>But yes, a coin dip will remove most kinds of spots. And it can be used on the entire coin or locally. However, if and when you remove them locally it will result in something almost as bad as the original spot was. That is a tiny area, another spot if you will, that is lighter in color than the rest of the coin and thus just as visible and arguably detracting as the dark colored spot you originally had.</p><p><br /></p><p>Of course you can experiment with diluting the dip, feathering it out in adjoining areas, and all kinds of things. But the end result is almost always not much better than what you had to begin with. So dipping the entire coin is often the best from among a group of bad solutions.</p><p><br /></p><p>And I say that because you will typically only get good results from dipping the entire coin when the coin is high enough MS, or put another way, if the coin retains a high enough quality of luster. Low MS grade coins and circulated coins sometimes do not turn out so well when dipped.[/QUOTE]</p><p><br /></p>

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