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<p>[QUOTE=&quot;Ardatirion, post: 465905, member: 9204&quot;]I&#039;ve seen some great work done with electrolysis on ancient coins. The primary problem is that it tends to strip the patina, requiring artificial repatination (which some people frown upon). More importantly, if the underlying coin is corroded, it can remove large chunks that one would otherwise attempt to keep on, in a simple mechanical cleaning. </p><p><br /></p><p>The biggest issue with electrolysis is, however, the skill of the individual doing the work. A &#039;professional&#039; can clean a coin up marvelously with minimal damage. But an amateur can destroy a piece in seconds. Here&#039;s an otherwise nice Maxentius bronze, ruined by too much time under the wire:[/QUOTE]</p><p><br /></p>

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