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<p>[QUOTE=&quot;mrbrklyn, post: 359798, member: 4381&quot;]They don&#039;t retain their luster.&nbsp; Every time you dip a coin, regardless of the expertise, you lose some luster, and also some of the metal.&nbsp; that tarnish is a metal oxide.&nbsp; CHEMICALLY speaking, you can reduce it which chemically removes the oxygen from the coin.&nbsp; Don&#039;t try it.&nbsp; That will surely destroy the coins finish.</p><p><br /></p><p>Or you can dip it which in effect removes a very small layer of the coins surface, and hence some of the luster.</p><p><br /></p><p><br /></p><p>Ruben[/QUOTE]</p><p><br /></p>

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