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<p>[QUOTE=&quot;Insider, post: 2990740, member: 24314&quot;]mrjason71, posted:&nbsp; &quot;I have 1,000s of Lincoln Wheat cents and 100s that are BU. <span style="color: #ff0000"><b>There are dozens with black spots.</b></span> Black spots that EZ-est and the like will not remove. Are you saying &quot;<b>Most KNOWLEDGEABLE, EXPERIENCED folks can remove&quot; </b>these? Maybe you are talking about the occasional spot thats created from dandruff or spittle or organic material or something. Ive seen these dissolve away in EZ-est. Im talking about carbon spots. They are really sulfur spots. There are scientific studies on them. I think everyone knows what I mean. Sure some misidentify a spot here and there as a carbon spot, but these spots I speak of are common. You see them on coins in slabs. If most knowledgeable, experienced people could remove them, Im sure someone would mention how they do it on the internet.&quot;</p><p><br /></p><p>Thanks for posting the link and calling me out!&nbsp; <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie45" alt=":eggface:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie46" alt=":facepalm:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie3" alt=":(" unselectable="on" unselectable="on" /></p><p><br /></p><p>I&#039;m sorry to read about your coins.&nbsp; Unfortunately, <b><i><u><span style="color: #660066">AFAIK There is not one person in the world who can successfully remove actual BLACK corrosion spots from copper coins without leaving a trace.</span></u></i></b>&nbsp; At the moment, some folks are working with lasers.&nbsp;&nbsp; </p><p><br /></p><p>For those who know what they are doing, a coin&#039;s surface can be COMPLETLY STRIPED to remove SOME types of spots and then recolored.&nbsp; This is not very successful on original BU (red) copper.&nbsp; </p><p><br /></p><p>PS Don&#039;t dip copper in EZ-Est. </p><p><br /></p><p>PPS&nbsp; Notice that even the professional chemists in the link know what much of the &quot;black&quot; spots are and its causes but they left something important:&nbsp; <b><i><u><span style="color: #660066">HOW DO WE CONSERVE THE ITEM TO GET RID OF IT!&nbsp; <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie8" alt=":D" unselectable="on" unselectable="on" /></span></u></i></b>[/QUOTE]</p><p><br /></p>

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