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<p>[QUOTE=&quot;physics-fan3.14, post: 2944152, member: 19165&quot;]I&#039;ll start by saying the MM is not doubled. It has received a hit (contact mark). </p><p><br /></p><p>As for the color, someone has chemically stripped the copper layer off, revealing the zinc core underneath. </p><p><br /></p><p>Sometimes, unplated cents are struck at the mint - these are rare, interesting, and valuable errors. However, some people try to simulate this and will use chemicals to remove the copper layer. Yours is one of these fakes. </p><p><br /></p><p>You can read all about how to tell the difference here: <a href="https://www.coinworld.com/news/us-coins/2015/10/lack-of-copper-may-not-an-the-error-collectors-clearinghouse.all.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.coinworld.com/news/us-coins/2015/10/lack-of-copper-may-not-an-the-error-collectors-clearinghouse.all.html" rel="nofollow">https://www.coinworld.com/news/us-coins/2015/10/lack-of-copper-may-not-an-the-error-collectors-clearinghouse.all.html</a></p><p><br /></p><p>Unfortunately, all this means that you have a damaged penny not even worth a penny anymore. Spend it if you can.[/QUOTE]</p><p><br /></p>

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