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<p>[QUOTE=&quot;physics-fan3.14, post: 878360, member: 19165&quot;]True, the grinding effect would have been responsible for removing the nose. But wire brushes were often used, and are generally considered responsible for die polishing lines - such as those on the reverse of my coin. To say that they aren&#039;t going to alter its appearance is somewhat simplistic - steel on steel is going to leave scratches. Many times, areas of missing detail are surrounded by die polishing lines, such as the Merc that Lehigh posted in this thread: <a href="http://www.cointalk.com/t52825/" class="internalLink ProxyLink" data-proxy-href="http://www.cointalk.com/t52825/">http://www.cointalk.com/t52825/</a>&nbsp; Two possibilities - your zinc grinders removed the detail and then they brushed/polished it up to make it look better, or the heavy vigorous brushing removed the detail. Both are plausible in my opinion.[/QUOTE]</p><p><br /></p>

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