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<p>[QUOTE=&quot;physics-fan3.14, post: 717660, member: 19165&quot;]Unstruck areas of a coin are incredibly easy to distinguish from struck areas. They will have pitting, and marks, similar in appearance to a struck through region. They will also not have any luster. I recommend you read two things:</p><p><br /></p><p>1. First, read my tutorial on luster here: <a href="http://www.cointalk.com/t58435/" class="internalLink ProxyLink" data-proxy-href="http://www.cointalk.com/t58435/">Luster: A Guide for Beginners</a></p><p><br /></p><p>2. Next, read my discussion of high point pitting (an effect due to weak strike) here: <a href="http://coins.www.collectors-society.com/registry/coins/CoinDetail.aspx?PeopleCoinID=178929&amp;PeopleSetID=6638" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://coins.www.collectors-society.com/registry/coins/CoinDetail.aspx?PeopleCoinID=178929&amp;PeopleSetID=6638" rel="nofollow">Discussion of Weak Strike and High Point Pitting on my Franklin Registry set</a>[/QUOTE]</p><p><br /></p>

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