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<p>[QUOTE=&quot;TypeCoin971793, post: 3061082, member: 78244&quot;]I am not sure what terminology you were looking for. There was a contaminant adhered to the surface that either accelerated or inhibited the thickening of the patina. It might also still be adhered to the surface. There is no specific <i>numismatic</i> word for this phenomenon, so I resorted to a <i>scientific</i> one.</p><p><br /></p><p>You obviously seem to have no idea what you are talking about, so you have no right to comment on other people’s knowledge. But since you are so sure of yourself, please enlighten the world as to what terminology should be used.[/QUOTE]</p><p><br /></p>

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