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<p>[QUOTE=&quot;GDJMSP, post: 1304332, member: 112&quot;]I agree with what you&#039;re saying here, but it is important for people to understand that even though the adjustment marks in the device area are not flattened completely on a weakly struck coin, they are still flattened and altered somewhat even on weakly struck coins. That&#039;s because as the metal moves during the strike and begins to flow into the devices the metal stretches and bubbles (for lack of a better term) upwards (with the hammer die) or downwards (with the anvil die). This completely alters the shape, depth, and definition of the adjustment marks - even on the areas of highest relief. </p><p><br /></p><p>This is what makes it possible to tell the difference between adjustment marks and damage. But only on coins where adjustment was made prior to strike. On coins where adjustment was made post strike the only way you can tell damage from adjustment marks is by the shape, depth and definition of the marks themselves. Adjustment marks will tend to be straight, uniform in depth, flattened in the bottom of the groove and sharply defined except at the very ends of each mark, and there is no metal built up on either side of the groove. Whereas damage is typically the opposite, it is seldom straight, the grooves are typically V shaped, there is most often metal on one side or the other of the groove, and they are most often deeper at one place or another.</p><p><br /></p><p><br /></p><p><br /></p><p>True, his new book covers from 1837 on. And yes, he says the planchets were adjusted by filing the edge, but he was referring to that happening with gold coins, not silver.</p><p>&nbsp;</p><p><br /></p><p><br /></p><p>We shall have to disagree on the underlined part. Granted, it happened very seldom with silver, and never with gold - after 1837. But there are some few cases where it did happen.</p><p>&nbsp; </p><p><br /></p><p><br /></p><p>On this we shall also have to disagree, for a large part of the time they are distinguishable. Granted, there may be some times they are not, but they are few and far between because of the characteristics I described above. </p><p><br /></p><p>Even Burdette agreeed Michael that adjustment marks occurred pre-strike, and post-strike. You are of course free to disagree, or say &quot;may&quot; if you wish.</p><p><br /></p><p><br /></p><p>edit - for those who would like to read Roger Burdette&#039;s comments, you can find them here - <a href="http://boards.collectors-society.com/ubbthreads.php?ubb=showflat&amp;Number=5193315&amp;nt=3&amp;fpart=2" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://boards.collectors-society.com/ubbthreads.php?ubb=showflat&amp;Number=5193315&amp;nt=3&amp;fpart=2" rel="nofollow">http://boards.collectors-society.com/ubbthreads.php?ubb=showflat&amp;Number=5193315&amp;nt=3&amp;fpart=2</a>[/QUOTE]</p><p><br /></p>

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