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<p>[QUOTE=&quot;jengebretson, post: 56084, member: 2727&quot;]Here is another update on this thing, for those that remember it... and especially what it looked like to begin with.</p><p><br /></p><p>Perhaps someone might find this interesting or useful.</p><p><br /></p><p>After I posted the above scans, I threw it in distilled water for 4 weeks or so.</p><p><br /></p><p>The distilled water turned the obverse brown for some reason, but also loosened up more of the encrustation. The DW was changed every couple days.</p><p><br /></p><p>I scraped what I could with a diamond dusted dental pick, and set it aside to work more on it.</p><p><br /></p><p>To my dismay, the encrustation started growing again.</p><p><br /></p><p>I treated it for Bronze Disease, which is common with ancient Romans, and is like rust on steel, but attacks bronze. The new encrustation was soft and green, so I figured it was something like BD, even if it wasn&#039;t exactly BD.</p><p><br /></p><p>For those not familiar with BD methods, I boiled it for 10 minutes in a solution of 2 cups distilled water and three tablespoons of a 3:2 ratio of sodium carbonate and sodium bicarbonate. (washing soda and baking soda)</p><p><br /></p><p>I then let it sit for 2 days.</p><p><br /></p><p>This stopped the growth, but was still encrusted.</p><p><br /></p><p>I gave up on working on the coin and threw it in Biox for 8 hours.</p><p><br /></p><p>Biox is a chemical made by the makers of Renwax, which attacks and eats anything not metal. It is more suited for tools or such than coins, but I had wasted enough time with this nickel.</p><p><br /></p><p>Biox ate the rest of the encrustation off... and turned the coin more or less silver colored.</p><p><br /></p><p>I hit it with a medium goat&#039;s hair dremel wheel to clean off the residue and remnants of the encrustation.</p><p><br /></p><p>I then applied two coats of Renwax, polished with a soft nylon cup.</p><p><br /></p><p>Here&#039;s how it turned out... I think most people will agree it looks quite a bit better than what it did originally. It doesn&#039;t quite have the nickel color to it, but it&#039;s alot better than green and red encrustation.</p><p><br /></p><p>Hopefully this information might prove useful to someone.[/QUOTE]</p><p><br /></p>

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