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<p>[QUOTE=&quot;TypeCoin971793, post: 3247634, member: 78244&quot;]While we&#039;re on the subject of hairlines, here is a a quick little diagram that I just made. The top left is the hairlines one would expect on a problem-free AU coin, while the top right is the hairlines one would expect on a problem-free heavily-circulated coin. The key here is that the hairlines are purely random and, for the most part, short.</p><p><br /></p><p>The middle left example has a patch of hairlines where a small portion was cleaned, like with a cloth or a Q-Tip. Note how the hairlines are long and have a deliberate pattern to them. Also note how the hairlines spread onto the devices (die polish lines do not do that). The middle right example has a larger patch.</p><p><br /></p><p>The bottom left example has had the entire surface cleaned. For this example, a cloth/brush/etc was used in a circular motion over the entire surface. Again, notice the length and deliberate pattern. The right bottom example has had a lateral wiping/brushing, so the hairlines cover the coin in only one direction. </p><p><br /></p><p>[ATTACH=full]851432[/ATTACH][/QUOTE]</p><p><br /></p>

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