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<p>[QUOTE=&quot;KurtS, post: 2094024, member: 11786&quot;]This is one of the real challenges when looking for things like doubled dies, mint mark varieties, and repunched dates (on older coins). When a coin is sorta banged up, it&#039;s often hard to filter out what is &quot;noise&quot; (damage), from the &quot;signal&quot;, ie how it left the mint. If the &quot;noise&quot; gets big enough, it may start looking indistinguishable from the coin&#039;s details--and your eyes easily fill in the blanks.</p><p><br /></p><p>It&#039;s kind of like this picture--can you see how the noise starts becoming part of the signal?&nbsp; If you stare at this picture long enough, you might start seeing letters elsewhere... <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie2" alt=";)" unselectable="on" unselectable="on" /></p><p><br /></p><p><img src="https://farm9.staticflickr.com/8598/16664799591_0a52b22bef_o.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>

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