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<p>[QUOTE=&quot;mrjason71, post: 2990773, member: 90347&quot;]Didn&#039;t want to &quot;call you out&quot;! You are awesome and have been very helpful and have shared freely of your knowledge and experience. Numismatics is littered with these bastardized terms. Heck, &quot;carbon spot&quot; isn&#039;t even accurate and I&#039;ve seen scientific papers calling it something as unscientific as &quot;Black Spot on Bronze&quot; lol. This preliminary debating over the meaning of a term reminds me of one of my other threads where we couldn&#039;t get anywhere for a while because I used the word &quot;dip&quot;. Took two pages just to convince members I was talking about acid/thiourea dip.</p><p><br /></p><p>Anyway, I&#039;m talking about the real deal sulfur spots that can pop up right before your eyes...the kind of spot that makes you pass on the coin without a second thought...you can take a bit of brass-o and massage them away...and what an awful coin you have thereafter. Black spot or raw metal spot...which is worse? They&#039;re both hideous. Maybe the raw metal will tone and be less obvious. I&#039;ve used erasers to eradicate them. Just literally erased them <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie2" alt=";)" unselectable="on" unselectable="on" /> Same nasty raw metal hole. </p><p><br /></p><p>I am not a chemist either. There MUST be something out there that will dissolve this sulfur (or whatever it is) without eating away the luster...especially flyspecks. I have a couple 1920s Unc Lincolns with flyspecks that just kill me. I would love to conserve them. I have the dates without flyspecks as well. Not a matter of just &quot;buy another coin you like&quot;. Someone has PVC issue, we tell them get some acetone. If toning is black and hideous, dip it. Just would be awesome to have a &quot;cure&quot; for this.[/QUOTE]</p><p><br /></p>

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