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<p>[QUOTE="John Burgess, post: 5132143, member: 105098"]that's another thing, if the rest of the coin has toned since the marks, removing the marks will leave brighter or discolored spots compared to the rest of the surface. </p><p><br /></p><p>kind of looks like a china marker marks to me, which is why I questioned if it was sharpie. China marker is sort of an oil/grease/wax based crayon pencil, that you peel. it would be moisture resistant, even to a lot of solvents and degreasers. it might smudge a bit if wiped hard, but won't really come off without a lot of work and something that will break down the grease/wax of the china marker. </p><p><br /></p><p>if it's china marker, the only way to really remove it from metal or anything else completely is either acetone and elbow grease rubbing, WD40 and rubbing, or a baking soda and water mix and rubbing. Again though, it's fine to use it to remove china marker on a piece of sheet metal, not so much for removing it from a coin that you get rub lines on.</p><p><br /></p><p>Honestly I'd just leave it alone at this point, you tried the least harmful methods and got nowhere, there's no guarantee underneath it won't have toned at a different rate and will still have lines on the coin, i'd just leave it as it is at this point unless you decide to possibly sacrifice the coin as an exercise in learning.[/QUOTE]</p><p><br /></p>
[QUOTE="John Burgess, post: 5132143, member: 105098"]that's another thing, if the rest of the coin has toned since the marks, removing the marks will leave brighter or discolored spots compared to the rest of the surface. kind of looks like a china marker marks to me, which is why I questioned if it was sharpie. China marker is sort of an oil/grease/wax based crayon pencil, that you peel. it would be moisture resistant, even to a lot of solvents and degreasers. it might smudge a bit if wiped hard, but won't really come off without a lot of work and something that will break down the grease/wax of the china marker. if it's china marker, the only way to really remove it from metal or anything else completely is either acetone and elbow grease rubbing, WD40 and rubbing, or a baking soda and water mix and rubbing. Again though, it's fine to use it to remove china marker on a piece of sheet metal, not so much for removing it from a coin that you get rub lines on. Honestly I'd just leave it alone at this point, you tried the least harmful methods and got nowhere, there's no guarantee underneath it won't have toned at a different rate and will still have lines on the coin, i'd just leave it as it is at this point unless you decide to possibly sacrifice the coin as an exercise in learning.[/QUOTE]
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Sharpie Stain??
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