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<p>[QUOTE="Conder101, post: 2106296, member: 66"]Can't be done. True luster is a function of the light on the microscopic flow lines left on the surface of the coin by the movement of the metal during striking. Once those line are destroyed by wear they are gone for good and the luster is gone as well. A chemical dip can make a coin "white" again, but the worn areas will have a much duller appearance than any unworn areas that still have luster. And a heavily worn coin dipped "white" will have a dead washed out appearance to it.</p><p><br /></p><p>Closest I have even seen to a chemically restored luster is on copper coins that have been treated with cyanide. (and i don't recommend playing around with that)[/QUOTE]</p><p><br /></p>
[QUOTE="Conder101, post: 2106296, member: 66"]Can't be done. True luster is a function of the light on the microscopic flow lines left on the surface of the coin by the movement of the metal during striking. Once those line are destroyed by wear they are gone for good and the luster is gone as well. A chemical dip can make a coin "white" again, but the worn areas will have a much duller appearance than any unworn areas that still have luster. And a heavily worn coin dipped "white" will have a dead washed out appearance to it. Closest I have even seen to a chemically restored luster is on copper coins that have been treated with cyanide. (and i don't recommend playing around with that)[/QUOTE]
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