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<p>[QUOTE=&quot;Herberto, post: 5824535, member: 74222&quot;]I have some questions.</p><p><br /></p><p>This lot is almost completly black/brown:</p><p>[ATTACH=full]1243482[/ATTACH]</p><p><br /></p><p>But this one is red:[ATTACH=full]1243483[/ATTACH]</p><p><br /></p><p><br /></p><p>Does anyone of you know why those two different lots above have different color/patina?</p><p><br /></p><p>What caused it? Is it clearning methods that determine the color? Or is the reason that certain soil(s) caused the specific color through hundreds of year when buried?</p><p><br /></p><p><br /></p><p><br /></p><p>And one more question: Can you see when a lot or coins were buried in the SEA instead of earthmud? I am asking for both copper coins and gold/silver coins.</p><p><br /></p><p>And one more thing: Byzantine Solidus or Hyperpyron are not 100% pure gold, but are respectively 98% and 90-94% pure. Will they still not be corroded if being in seawater for hundreds of year? I know gold/silver don&#039;t corrode, but what if it is 90-94%?</p><p><br /></p><p>Thanks[/QUOTE]</p><p><br /></p>

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