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<p>[QUOTE=&quot;kanga, post: 2801831, member: 9270&quot;]To the best of my knowledge, <b>NO</b>.</p><p>There has been a chemical reaction between the coin and its environment.</p><p>With silver coins that generally means sulfur.</p><p><br /></p><p>Can the silver sulfide be removed?</p><p><b>YES</b>.</p><p>Can the sulfide part alone be removed?</p><p><b>NO</b>.</p><p>When the sulfur gets removed the silver goes with it.</p><p>Hence a sub-microscopic layer of silver is gone.</p><p>And that significantly impacts the metal flow lines created when the coin was struck.</p><p>The &quot;hourglass&quot; effect is lessened or completely removed.[/QUOTE]</p><p><br /></p>

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