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<p>[QUOTE=&quot;Kevin Mader, post: 3786183, member: 106826&quot;]I&#039;ve not reviewed the tutorial posted in the Error Coins forum, but that may be a good first resource to understanding die doubling.&nbsp; Developing the eye will take time, especially if an individual intends to discover unattributed doubled dies.&nbsp; But with regards established DDOs/DDRs, there are many established resources that include die markers to help you attribute a coin.&nbsp; If you don&#039;t see the doubling or aren&#039;t sure, look for the markers.&nbsp; If you don&#039;t find them...then you are probably staring at a normal coin.&nbsp; Age and wear can make the attribution more difficult, hence the need to be able to see the doubling altogether.&nbsp; Eventually things get easier with expanded knowledge.&nbsp; Good luck Scott.[/QUOTE]</p><p><br /></p>

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