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Message:: [QUOTE="Hommer, post: 4211926, member: 73266"]I'm gonna try helping with this. A set of dies is subjected to friction of metal movement everytime it strikes a coin. The friction removes a very small amount of the surface of the dies. This amount adds up over time and it begins to show on the coins that they strike. The evidence on the coin is shown as lines radiating out from the center of the coin to the rim. They will be heaviest in areas of more metal movement which is usually close to the rim. These lines do not consist of sharp ridges and valleys but are more rounded in nature. I saw these on your coin in these areas. They are protected from wear in the devices.[ATTACH=full]1079444[/ATTACH] One easy way to see evidence of cleaning is also from lines but these will usually be very fine lines all going in the same direction. They won't be as rounded and are more likely to reflect light on a worn coin. I saw these on your coin in these areas:[ATTACH=full]1079445[/ATTACH] I hope this is understandable and helpful. Edit to add because I believe it is important: Regular circulation will create scratches as well. There will be all types, but when you see the really fine scratches aren't coordinated, as in running perpendicular to each other and there are smooth areas without any scratches,  again uncoordinated, mixed in, it is probably just circulation wear.[/QUOTE]