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<p>[QUOTE=&quot;Oldhoopster, post: 4603827, member: 84179&quot;]There are examples of older over mint marks. The 1900 O/CC Morgan dollar 1950D/S quarter are examples. Go to <a href="http://www.doubleddie.com" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.doubleddie.com" rel="nofollow">www.doubleddie.com</a> and open the OMM (over mint marks) tab for listings. </p><p><br /></p><p>Originally, mintmarks were added to the individual dies in Philly as [USER=15199]@desertgem[/USER] said.&nbsp; At some point after the 1950s (I can&#039;t recall exactly) Philly sent unmarked dies to the branch mints to add there own mintmarks.&nbsp; Denver would not have an S mm punch, not would SF have a D mms punch so that effectively ended the chances of an OMM</p><p><br /></p><p>By 1981, the only cents made at SF were proofs.&nbsp; Proof dies were specially made with a separate process compared to business strike dies.&nbsp; How is Denver die going to get to SF, make it into the proof die process, strike coins, and then that coin gets out into circulation instead of a proof set???</p><p><br /></p><p>But you&#039;re missing the obvious on your coin. The top of the D is flattened, but the bottom is normal.&nbsp; That was due to the D getting hit with something.&nbsp; Some metal was displaced towards the middle and that&#039;s what you&#039;re seeing.&nbsp; Makes perfect sense, especially with all of the other hits and gouges on the coin</p><p><br /></p><p>If You want to believe that some event defied staggering odds has occurred, that&#039;s your decision, but if you want to use some knowledge of the minting process, logic, and objective observations you&#039;ll see that it&#039;s just PMD[/QUOTE]</p><p><br /></p>

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