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<p>[QUOTE=&quot;TypeCoin971793, post: 2590835, member: 78244&quot;]What I look for in determining AU vs MS is a distinct color and texture change on the high points of the devices. When a coin is struck, the metal all over flows into the shape indicated by the die, and the resulting flow lines are what we know as luster. These flow lines have a specular reflectivity. When the flow lines disappear due to wear, the surface changes to a dull (in this case) silver color as it no longer has the specular reflectivity. Strike strength does not affect this. The 1813 and 1814 clearly show this color change on the high points.[/QUOTE]</p><p><br /></p>

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