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<p>[QUOTE=&quot;physics-fan3.14, post: 3315643, member: 19165&quot;]No. The mintmarks were all punched at the Philadelphia mint. The branch mints did not have the facilities to make or harden dies - the dies were all made and punched at the mother mint. So, a worker would have had to erroneously punch and then overpunch while creating the die. San Francisco then used whatever was sent to it.[/QUOTE]</p><p><br /></p>

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