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<p>[QUOTE=&quot;halfcent1793, post: 3350472, member: 86853&quot;]You should definitely lightly oil the surface to protect it. Copper collectors do this all the time. Silver isn&#039;t as reactive, but it will definitely corrode when unprotected. Think of how silverware always tarnishes after you clean it. Then you dip it to get rid of the tarnish and the cycle starts again until there&#039;s no silver left. Or in the case of a coin, no luster left.</p><p><br /></p><p>Really, the better approach would be not to use acetone or other organic solvents in the first place. Any crud that won&#039;t come off with distilled water should probably be left on the coin.[/QUOTE]</p><p><br /></p>

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