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<p>[QUOTE=&quot;omegachop, post: 8384045, member: 93398&quot;]I have a handful of copper (Roman?) ancient coins, most of which are covered completely in hard verdigris with no details visible whatsoever. They just look smooth because they are encrusted in hard green scale. I had left them soaking in olive oil for the past couple years but that doesn&#039;t seem to have done much to loosen anything up. A stiff toothbrush and toothpick still have no effect on the oxidation. I tried an electrolysis method I read about online and that seems to be working very well with my first few test coins. I still can&#039;t make out any definite words or dates but I can now see the vague semblance of an emperor&#039;s bust. I&#039;ll upload a picture for you guys to see, I&#039;m wondering if I should stop here or keep going? I think I want to leave some original patina on, I don&#039;t want to strip them to shiny copper. These coins are probably a lost cause but I thought I would see what you all think? And should I coat the cleaned ones in something like wax to protect them?</p><p><br /></p><p><a href="https://ibb.co/crWpLng" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://ibb.co/crWpLng" rel="nofollow"><img src="https://i.ibb.co/crWpLng/DSC02924.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></a> <a href="https://ibb.co/qxfJZjQ" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://ibb.co/qxfJZjQ" rel="nofollow"><img src="https://i.ibb.co/qxfJZjQ/DSC02926.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></a> <a href="https://ibb.co/v3wQYnh" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://ibb.co/v3wQYnh" rel="nofollow"><img src="https://i.ibb.co/v3wQYnh/DSC02925.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></a>[/QUOTE]</p><p><br /></p>

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