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<p>[QUOTE=&quot;GDJMSP, post: 2042644, member: 112&quot;]If that was all I ever said, that would be one thing. But in every discussion we&#039;ve had on this subject I also point out that there are other causes for lines on a die that can produce raised lines on a coin - other than die polish lines. Things like die scratches and tool marks. I have never, ever, said that if the raised lines on a coin are not die polish lines that they are scratches on the coin.</p><p><br /></p><p><br /></p><p><br /></p><p>OK, one issue though. Die polish lines, die scratches from the die being re-worked, touched up, or even just wiped to remove debris, and tool marks on dies, all of these things can create raised lines on a coin. And yes, those lines can criss-cross because they are from different sources.</p><p><br /></p><p>But scratching a coin, post strike, also creates <u>both</u> raised lines and incuse lines on the coin.</p><p><br /></p><p>Doesn&#039;t that kind of present a problem for collectors ? Here you have several sources that can all create raised lines on a coin. The market considers the sources that come from the die as being OK. But as you said yourself, lines that occur post strike are not OK. So how do you tell one from the other ? </p><p><br /></p><p>The explanation that is usually given is that &quot;die polish&quot; lines are raised, and that lines from scratches are not, that lines from scratches are incuse. Well yes, lines from scratches do produce incuse lines, but it is not even mentioned that lines from scratches ALSO produce <u>raised</u> lines on the coin - not just incuse lines.</p><p><br /></p><p>So again, how do you tell one from the other ? That&#039;s why it&#039;s so important to know and understand the differences between the lines and how they occur.</p><p><br /></p><p>And that is the problem because if a coin has any actual die polish lines on it, the TPGs treat any and all other lines on the coin as being die polish lines - including lines from scratches and hairlines. The result is that many coins that should not be graded, are graded. And that many coins are given higher grades than they really deserve. </p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p>Little is completely impossible. But it is extremely unlikely because of the methods used to polish dies. Dies fit into the press one way, they also fit into the chuck of the polisher one way. The polishing wheel only creates parallel lines. Different and multiple grits of diamond dust are used when a die is polished. So the die is not just polished once, it is polished several times without the die ever being moved. So all of these things combined are what prevent actual die polish lines from criss-crossing.[/QUOTE]</p><p><br /></p>

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