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<p>[QUOTE=&quot;GDJMSP, post: 871719, member: 112&quot;]Again terminology, and its misuse by people, thus creating misunderstanding, raises its ugly head.</p><p><br /></p><p>What you are describing Paul, and this will probably cause even more disagreement, is more correctly called rolling machine damage.</p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p>Let&#039;s not forget the coin you are using as an example is broadstruck. That is the source of the marks inside the rim on this coin. The counting machine damage are the horizontal lines.</p><p><br /></p><p><br /></p><p><br /></p><p>IMO, part of the problem is that die polish lines provide a convenient excuse for what are not always die polish lines. How many times in various discussions over the years have I argued that what people are calling die polish lines - are not die polish lines ?</p><p><br /></p><p>To really understand the issue you first have to understand how dies are polished. And the method for polishing a die dictates what can be die polish lines and what cannot. </p><p><br /></p><p>Dies are polished on a flat, spinning zinc disk. The face of the die is held flat against the disk. And since the highest points on a die are the fields, it is only the fields that touch the disk. </p><p><br /></p><p>Now it has been argued many times that die polish lines can be in multiple directions. OK, please explain to me how that is possible. You have a flat spinning disk that is abrasive. It is very fine abrasive but abrasive all the same. And that is what polishes the die. Then you have a flat die face being held against the spinning disk. This will create lines that run in one direction and one direction only. Yes, the lines will be an arc, but it will be an arc that is so shallow that the lines appear to the eye to be straight lines all running in the same direction. They can do nothing else.</p><p><br /></p><p>And even if the die is picked up from the disk, examined to see if the polishing is finished or if it needs to be polished some more, and then placed back against the disk for additional polishing, but the die is not held in exactly the same postion - you will still see only lines running in one direction. This is because all previous polish lines are obliterated by the final polishing.</p><p><br /></p><p>Conclusion - if you see lines running in multiple directions on a coin, they are not all die polish lines for they cannot be. The group of lines that are the deepest will be flow lines that were etched into the face of the die that were not polished out.</p><p><br /></p><p>This is the only way that you can have these lines in multiple directions on a coin.</p><p><br /></p><p>And yeah, I already know, everybody is going to tell me I&#039;m wrong again <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie11" alt=":rolleyes:" unselectable="on" unselectable="on" /></p><p><br /></p><p>Now on your coin Paul, it is the location of the lines, and that fact that they exist in such a narrow space, that dictate that they cannot be die polish lines. For how can a die be held against a flat spinning disk in such a manner as to create such a narrow band of lines ? Answer - it can&#039;t be. So the lines must be due to something else. And since the lines also intersect and cross the devices, they can only have been formed after the coin was struck.</p><p><br /></p><p>Now imagine a wheel or a roller crossing a coin as it is counted in a machine. The lines would necessarily be straight lines. And they would only occur where the wheel touched the coin. Thus the conclusion that the lines on your coin were caused a counting machine.[/QUOTE]</p><p><br /></p>

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