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<p>[QUOTE=&quot;BadThad, post: 1729943, member: 17261&quot;]Thanks for sharing and the kind words! <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie8" alt=":D" unselectable="on" unselectable="on" /></p><p><br /></p><p>First off, the product&#039;s name is <b>VERDI-CARE™</b>.</p><p><br /></p><p>Sure is a nice coin, looks like you did a good job at the conservation.&nbsp; I&#039;ve studied the methods used by ancient collectors in depth. Ancient coins can be quite difficult to conserve and they usually require methods that would make a modern collector (me) cringe. It&#039;s good that you picked a more conservative method for such a beautiful coin! The only part that scares me was the screw, I don&#039;t recommend that because it could have caused serious damage. Always stick with soft implements. The hardest thing I&#039;d ever recommend is a thorn....and those are REALLY hard on my scale.</p><p><br /></p><p>Only two things I can suggest for future conservation.</p><p><br /></p><p>1) Verdigris and it&#039;s feed materials are acidic. The corrosion contains both organic and inorganic acids. It&#039;s good to soak for at least a few hours in distilled water with a tiny bit of baking soda dissolved in. The lightly basic wash will help to neutralize the acids because, as you can image, they play a critical role in the self-propagation of verdigris. People often use the term &quot;bronze disease&quot; (which I hate) to describe hydrochloric acid based-verdigris (copper chloride). Neutralization of HCl is important to older, heavier verdigris. If you want to be ultra conservative, you can just soak in distilled water with the hopes that some of the acids will solubilize. However, most distilled/deionized waters tend to be slightly acidic which is why I recommend tweaking the pH up a hair with baking soda.</p><p><br /></p><p>2) Always physically work a coin <b>while under fluid</b>. That way you&#039;re assured a well lubricated surface which helps prevent the removal of patina. I just use a lab breaker with the coin and just enough fluid to cover it. Start with only up and down motions, let it sit for 10 minutes, come back and try up and down again. Sometimes gunk will come right off after a few tries. If that isn&#039;t working, then start with a slight rubbing action...using very light pressure....barely touching the problem. Again, let it sit and try again. Keep repeating this and only increase your implement pressure slowly. If you&#039;re not making progress, sometimes it&#039;s best to let it soak for 24 hours. After that, start over with the tapping motion and work your way up.[/QUOTE]</p><p><br /></p>

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