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<p>[QUOTE="borgovan, post: 477987, member: 13016"]Thank you very much for the compliment! That coin is a monster.</p><p> </p><p>Jefferson nickels tone extremely nicely. In fact, I think I have seen beautiful toning on nearly every single date/mintmark combination of the series. Percentage-wise, I would say that the war nickels have the most toning, although these are difficult to find toned attractively.</p><p> </p><p>I don't think the design plays much of a role. I think it's the composition of the metal, mainly. In your example, you talked about Morgan and Peace dollars, but don't forget; there was only one Morgan dollar after 1904 (that being the 1921), so there's a large span between the Morgan and Peace dollar production. The metallic composition is largely different between these two series if you look at the trace metals involved.</p><p> </p><p>Once a coin is cleaned, I think it does not tone properly because of the microscopic geometry of the coin. The fluid flow-lines are gone, leaving less of a textured surface onto which the oxides would normally adhere. A smoother surface means less toning.[/QUOTE]</p><p><br /></p>
[QUOTE="borgovan, post: 477987, member: 13016"]Thank you very much for the compliment! That coin is a monster. Jefferson nickels tone extremely nicely. In fact, I think I have seen beautiful toning on nearly every single date/mintmark combination of the series. Percentage-wise, I would say that the war nickels have the most toning, although these are difficult to find toned attractively. I don't think the design plays much of a role. I think it's the composition of the metal, mainly. In your example, you talked about Morgan and Peace dollars, but don't forget; there was only one Morgan dollar after 1904 (that being the 1921), so there's a large span between the Morgan and Peace dollar production. The metallic composition is largely different between these two series if you look at the trace metals involved. Once a coin is cleaned, I think it does not tone properly because of the microscopic geometry of the coin. The fluid flow-lines are gone, leaving less of a textured surface onto which the oxides would normally adhere. A smoother surface means less toning.[/QUOTE]
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