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<p>[QUOTE=&quot;mrbrklyn, post: 102172, member: 4381&quot;]I can only comment on the chemistry of it since that&#039;s the only thing I have a degree and exprertise in.&nbsp; If you put a foriegn substance intentionally on a coin, eventualy it ages and reacts with a coin, especially since the coin is metal.&nbsp; Metal is very chemically active, except perhaps gold under nornmal conditions.&nbsp; But even gold will coause a voltage with another substance.&nbsp; Once you put a wax on a coin, it would be nearly impossble to safelty remove it in the future.</p><p><br /></p><p>Most of the knowledgable coin collectors I&#039;ve spoken with disdain the Smithsonian&#039;s treatment of coins.&nbsp; They base their opinions on the instituions polishing of the coins.</p><p><br /></p><p>Ruben[/QUOTE]</p><p><br /></p>

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