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<p>[QUOTE=&quot;kanga, post: 1303276, member: 9270&quot;]1. It looks like a &quot;sneeze&quot; coin. Replace it.</p><p><br /></p><p>2. Then use it as a test coin.</p><p><br /></p><p>I don&#039;t think distilled water, detergent solution or acetone will help it but give them a try.</p><p>Next step IMO would be a SHORT dip in a DILUTED silver dip.</p><p>Play with it until it looks reasonable.</p><p>Keep a photo record (same lighting and exposure) after each step, that way you can learn what &quot;treated&quot; coins look like.</p><p>When the brown specks disappear look at the place they used to be with a loupe (at least 10x) to see if there are now pits in the surface.</p><p>The coin is toast (bullion value only); might as well use it as a learning experience.[/QUOTE]</p><p><br /></p>

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