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<p>[QUOTE=&quot;hotwheelsearl, post: 7380111, member: 75143&quot;]Boy. Don&#039;t you hate it when you get a coin with strong details, great patina, but almost complete encrusted in the hardest limestone deposits you&#039;ve ever seen? It&#039;s very sad.</p><p>[ATTACH=full]1285075[/ATTACH] </p><p>Knowing that it would take <i>forever</i> to manually remove the deposits, I of course opted for the nuclear option: <i>la chemie</i>.</p><p><br /></p><p>First go, as always, was sodium hydroxide. This removed most of the deposits, but left a rather odd blue deposits instead. So, into the vinegar it went, which took off the blue but left some reddish brown. So, into the lemon juice it went, which didn&#039;t do much of anything at all.</p><p>Final dip was sodium thiosulfate which made a reasonable attack against the rust deposits.</p><p><br /></p><p>Finally, some Jax Brown-Black and a coat of Ren Wax later, it looks great!</p><p>I do with the color was more even and the patina retained, but you can&#039;t win them all. Reverse became a little porous, but at least it&#039;s visible. The letters took a bit hit, unfortunately. I could probably toss this in a rock tumbler or something for a more attractive appearance, I suppose.</p><p>[ATTACH=full]1285077[/ATTACH]</p><p><br /></p><p>Maximinus II Daia AE Follis</p><p>IMPCGALVALMAXIMINVSPFAVG. Laureate head right.</p><p>GENIOA VGVSTI. Genius left, eagle at feet, holding cornucopia, gamma in right field</p><p>21mm</p><p>3.9g</p><p>RIC VI Cyzicus 84a, V</p><p>MM: MKV[/QUOTE]</p><p><br /></p>

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