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<p>[QUOTE=&quot;gronnh20, post: 2480723, member: 73224&quot;]Some of what you are seeing is worn die.&nbsp; Some is wear and tear.&nbsp; And some is machine doubling.&nbsp; I don&#039;t have a link right in front of me.&nbsp; But, google &quot;trail die&quot;.&nbsp; There is a site dedicated to trail dies.&nbsp; It will give you a better explanation of what you are seeing.&nbsp; The pic of &quot;PLURI&quot; shows trails from the &quot;U&quot; clearly.&nbsp; This comes from the hubbing process of the working die.&nbsp; There is slippage between the working die and master hubbing die.&nbsp; According to this site this slippage also creates a form of doubling.&nbsp; A trail die and a doubled die do not necessarily go hand in hand.[/QUOTE]</p><p><br /></p>

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