1870 MPD/RPD/DDO S5
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   The 1870 S5 is another desirable MPD due to the unusually clear "0" of the date rising out of the denticles. Plus, it contains two other varieties: a DDO and RPD. Only 11 are known to exist.
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MPD
RPD
1883 MPD S1 PCGS MS66RB
   The 1883 S1 features a 1 punched into the upper bust.