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<p>[QUOTE="Paul M., post: 2399419, member: 73165"]This is all very simple. Corrosion is bad stuff that eats away the surface of the metal. Verdigris is bad stuff on copper that is green. Patina is good stuff (that could be green or not). Toning is good stuff that could be just about any color, unless it's black and on a coin minted after around 1600 (then it's environmental damage), or it's blatantly artificially induced.</p><p><br /></p><p>There. Subthread over, lol. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="Paul M., post: 2399419, member: 73165"]This is all very simple. Corrosion is bad stuff that eats away the surface of the metal. Verdigris is bad stuff on copper that is green. Patina is good stuff (that could be green or not). Toning is good stuff that could be just about any color, unless it's black and on a coin minted after around 1600 (then it's environmental damage), or it's blatantly artificially induced. There. Subthread over, lol. :)[/QUOTE]
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