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<p>[QUOTE=&quot;John Burgess, post: 7804802, member: 105098&quot;]yeah, toning, the darker yellows, oranges and reds/browns are just deeper toning while the lighter color is a much thinner layer in those spots. I have my theories, which everyone else has, opinions as to how and why toning does what it does, so I won&#039;t get into it. But toning isn&#039;t necessarily uniform in thickness,and can develop differently especially in alloys like this where the 10% copper is pretty reactive while the 90% gold isn&#039;t very reactive at all, the concentration of copper in some areas could be higher or gold in some areas higher, causing spots to just not tone at the same rate, same as other areas.</p><p>And high spots, open fields, and low spots can layer toning differently although all in the same environment and exposed to the same conditions.</p><p>On that coin the design is incuse not raised, you can see where the toning has come off around the rim where the coin has made contact over the years, The next highest point is the surface/fields, and the design itself is the low point. the minor interruptions in the toning could also of been handling&nbsp; before it was slabbed many years ago. </p><p><br /></p><p>It&#039;s also difficult to grade these due to the design in my opinion.[/QUOTE]</p><p><br /></p>

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