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<p>[QUOTE=&quot;physics-fan3.14, post: 4903935, member: 19165&quot;]Some lines can be from cleaning. </p><p><br /></p><p>Here&#039;s the best way to tell the difference: take a look at the top picture I posted. Notice how the lines run &quot;under&quot; the clapper? You don&#039;t see any of the lines on the clapper itself - because these are die polish lines. They are on the face of the die, which is the highest part of the die (and don&#039;t *usually* extend onto the devices. There are exceptions to every rule, of course). </p><p><br /></p><p>If these were lines from cleaning, they would run &quot;over&quot; the clapper. That&#039;s because the lines from cleaning are done after the strike - now the raised devices are the highest point of the coin. Compare the above pictures to this one, where the lines run over the top of the letters - this is from cleaning: </p><p><br /></p><p>[ATTACH=full]1183024[/ATTACH][/QUOTE]</p><p><br /></p>

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