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<p>[QUOTE="doug444, post: 1938105, member: 38849"]First of all, it's Mexican, struck at the Mexico City mint. It might be a shipwreck coin, where the environment certainly discourages toning. I don't understand your comment, "...in any grade." This piece is MS-61, no toning, no big deal.</p><p><br /></p><p>Keep in mind that toning is a contaminant, silver sulfide, on the surface of a coin, and the color varies with the thickness of the sulfide layer. No silver sulfide, no traditional toning.[/QUOTE]</p><p><br /></p>
[QUOTE="doug444, post: 1938105, member: 38849"]First of all, it's Mexican, struck at the Mexico City mint. It might be a shipwreck coin, where the environment certainly discourages toning. I don't understand your comment, "...in any grade." This piece is MS-61, no toning, no big deal. Keep in mind that toning is a contaminant, silver sulfide, on the surface of a coin, and the color varies with the thickness of the sulfide layer. No silver sulfide, no traditional toning.[/QUOTE]
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