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<p>[QUOTE=&quot;Michael K, post: 3063053, member: 78298&quot;]A few other off metal (copper planchet) later date cents have been found.</p><p>I believe most or all from Denver. One theory here says that a cleaning crew found a few old blanks at various times, possibly stuck in weird parts of machinery. And just tossed them in a bin of zinc blanks. You can&#039;t take anything out of the mint. Which would explain why they were discovered in circulation and not clandestinely minted and smuggled out. And why there aren&#039;t a whole &quot;planchet roll&quot; of them.</p><p>I&#039;ve worked production, and done &quot;cleans&quot; and pieces of stuff can end up in the weirdest places. With the speeds that the machines use at the mint and the billions of cents produced, it would make sense that an occasional blank could end up in an unlikely place, and not be discovered for years, so some copper blanks could have been discovered after they were no longer in use.</p><p>The different blanks look similar and you wouldn&#039;t know unless you weighed them.[/QUOTE]</p><p><br /></p>

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