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<p>[QUOTE=&quot;Kevin Mader, post: 8215207, member: 106826&quot;]As the dies age, the flat surfaces become concave an/or irregular. During the coining process, the metal flows to these areas. Coin surfaces become irregular and devices/features become washed out. Especially on the periphery of a VLDS coin where outer devices flow into the rim or where excess metal flows around the periphery of a device.&nbsp; Add in movement of a sloppy tool, weird things happen. Die maintenance is important throughout as are constant equipment adjustments during coining. But dies wear out and even the talented toolmakers can’t polish their way through it.[/QUOTE]</p><p><br /></p>

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