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<p>[QUOTE=&quot;Michael K, post: 3122611, member: 78298&quot;]1982-S&nbsp; proof only large date</p><p>1982 large date Philly&nbsp; copper</p><p>1982 large date Philly&nbsp; zinc</p><p>1982 small date Philly copper</p><p>1982 small date Philly zinc</p><p>1982-D large date copper</p><p>1982-D&nbsp; large date zinc</p><p>1982-D small date zinc</p><p>1982-D small date copper (1 known)</p><p>Denver didn&#039;t strike any 1982&#039;s in&nbsp; small date copper. But 1 has been</p><p>found. Perhaps another may turn up one day. How&nbsp; was only 1 coin struck on a copper planchet? That year they switched from copper to zinc towards the end of the year. So they were only striking zinc small dates in Denver.</p><p>But what happens if there is a cleaning crew and they find a copper blank on the floor, or stuck in a piece of machinery? Well you can&#039;t take anything out of the mint, so they just toss it into a bin of zinc blanks, they look the same&nbsp; anyway. That&#039;s just one theory (someone proposed here) how it could have happened. I have worked production and that seems a likely scenario. Often times with errors, an entire sheet of planchets (different metal, different thickness, whatever) gets used mistakenly, and around (40?) coins will be made by mistake. But that didn&#039;t happen here.</p><p>There was 1 or 2 left over copper blanks, or the cleaning crew theory.</p><p>The proof coin has a little value.</p><p>The Philly small date, copper or zinc has value in top condition.[/QUOTE]</p><p><br /></p>

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