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<p>[QUOTE=&quot;physics-fan3.14, post: 26242580, member: 19165&quot;]The answer to your question &quot;Can it be restored?&quot; largely depends on what is wrong with it. </p><p><br /></p><p>If it is just a surface film, a spot of something on the coin, the coin can be conserved - that is, the film or spot can be removed. I&#039;ll let others describe the methods. </p><p><br /></p><p>However, if that spot is actually corrosion and has damaged the surface of the coin... no, there is no way to restore that and have it be acceptable to the majority of collectors. </p><p><br /></p><p>For extremely rare coins, there are techniques to minimize the visual impact of the problem, but it will always be a damaged coin.[/QUOTE]</p><p><br /></p>

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