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<p>[QUOTE=&quot;Mountain Man, post: 3642336, member: 94733&quot;]I believe the 1981 is roller marks. </p><p><i>“1978 to 1982 saw many examples of these. They are not a true &quot;Woody&quot; which is an improper alloy mix. They are most likely roller marks, characterized by relatively straight and evenly spaced stripes. While they may show on both sides of the coin, many times they do not.” - Mike Diamond</i></p><p><i><br /></i></p><p><i>&quot;They are from dirty or polluted lubricant that is used during the rolling process that gets impregnated into the surface of the strip and remains after it has been rolled to proper thickness.&quot; – Ken Potter</i></p><p><br /></p><p>The 1983 is PMD. Looks like the reeds of another coin slammed into it.[/QUOTE]</p><p><br /></p>

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