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<p>[QUOTE=&quot;physics-fan3.14, post: 3196331, member: 19165&quot;]TC, be honest now. You can&#039;t really compare the putrid shades of your AT&#039;d coin to the vibrant hues of the Morgan. </p><p><br /></p><p>And, as you seem to be familiar with Sunnywoods coloring scheme, you know that he goes through about 3 cycles of the color progression. The first cycle is the lighter pastel tones, the second cycle is the bright, popping colors that get so much attention, and then the third cycle is the darker, more subdued tones. The 79 you post here is a great example of a nearly full set of all three cycles. The S, J, and C areas are all yellowish - but clearly they are different shades of yellow. That is because as the silver sulfide layer gets thicker, it is going to change the absorbent properties. The color you see is based on the mathematical relationship between the thickness of the layer and the wavelength of light. </p><p><br /></p><p><br /></p><p><br /></p><p>The blues on your AT&#039;d coin and the blues on that 1882 look absolutely nothing alike. I&#039;m sorry if you can&#039;t see that. </p><p><br /></p><p><br /></p><p><br /></p><p>I thought this thread was about toning on that Peace dollar? Maybe I&#039;m confused on what we&#039;re arguing about, then?[/QUOTE]</p><p><br /></p>

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