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<p>[QUOTE=&quot;expat, post: 8131534, member: 111067&quot;]Here is some info for you to file away for future reference.</p><p>Beginning in 1990 for cents and 5-cent coins and 1991 for other denominations, the Mint mark was applied to the master die and not the individual working dies. Soon, it became part of the master design, stabilizing the Mint mark location, and eliminating repunched Mint marks.</p><p>So, when you see a coin dated before this, with the mintmark hand punched into the working die, with the same looking &quot;doubling&quot; on mintmark and date, you can be pretty sure you have machine doubling[/QUOTE]</p><p><br /></p>

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