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<p>[QUOTE=&quot;GDJMSP, post: 969437, member: 112&quot;]OK - I&#039;m going to try and explain this. The reason I think you&#039;re having a hard time understanding this is because you have a preconceived notion in your head about the file and the coin. </p><p><br /></p><p>First of all, those $5 gold coins you were using as examples - how big are those coins ? They&#039;re 25mm - about the size of a quarter. Now imagine if you will having to hold on to a quarter and then have room to run a file across it - without filing your fingers at the same time. That means you have a pretty small file. With my fingers holding a quarter secure enough to run a file over it I only have about 1/4 inch in between my fingers for the file to fit.</p><p><br /></p><p>And they are not trying to lay this file down flat and file the coin, they only use the end of the file to do the work. And because they use the end of the file only it&#039;s a simple matter to have file marks on a device of the coin and then the feild and then have the marks stop and not continue on.</p><p><br /></p><p>Sometimes they would only try to file off the edges, or near the edges. They did not need to run the file all the way across the coin, just a portion of the coin to remove a small bit of metal. That&#039;s why adjustment marks show up sometimes on or near the edge, or in the middle of the coin - and no place else.</p><p><br /></p><p>Your assumption of what is happening is that the plachet is laid down flat, the file is laid down flat, and the entire surface of the planchet was filed. And then you are assuming that the areas of the coin that show no adjustment marks are because the marks were wiped out by the minting process. But this can&#039;t happen either because if it did then the marks would not be left in just some select spots they would show up across the entire coin. The minting isn&#039;t going to wipe out just these and not those, if it wipes some out it wipes them all out.</p><p><br /></p><p>This reinforces that adjustment marks happened just like I described - after minting and by using just the end of a very narrow file.</p><p><br /></p><p>Now I know you&#039;re still not gonna believe this so I&#039;m going to dig my tools out of storage and file a coin for you and then show you the pictures. Maybe then you&#039;ll believe me.[/QUOTE]</p><p><br /></p>

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