1971-S Repunched Mintmark RPM-010

Description

Reaching the double digits in the 1971-S RPM catalog, RPM-010 documents an S/S North displacement on a proof die — the third northward-shifted proof RPM after RPM-004 and RPM-008, each originating from a different working die but sharing the same directional geometry. VarietyVista's attribution as UVC-1168 with DMR-012 places this variety in the higher UVC range, and its Stage A shows both obverse and reverse at EDS with Stages B and C at MDS and LDS remaining unconfirmed. The obverse die variant ODV-028 again identifies the re-engraved tie variant, reinforcing the pattern of RPM concentration among dies bearing this particular bow tie modification. When three separate proof dies within a twelve-variety RPM catalog all show S/S North displacement, the statistical pattern suggests that northward correction was among the most common directional adjustments made by die workers at San Francisco — perhaps reflecting a systematic tendency in how the mintmark punch was initially positioned relative to its target coordinates, with the natural mechanics of the punching motion favoring a slightly southward initial placement that required northward correction. Each of these three northward RPMs — RPM-004, RPM-008, and RPM-010 — differs in its specific die marriage, die state characteristics, and the precise magnitude and angle of the northward displacement, making accurate attribution a matter of comparing the individual repunching geometry and associated die markers against the catalog's reference images for each numbered entry. Proof striking preserved the S/S North displacement with mirror-field precision on all three dies, though each coin's unique die marriage record connects it to a distinct production moment at San Francisco.

Die Markers

• UVC-1168
• DMR-012
• Stage A:
• Obverse and Reverse are EDS
• Stage B:
• MDS (unconfirmed)
• Stage C:
• LDS (unconfirmed)

Attribution History

• Discovered by Timothy Wissert
• Expert attribution by VarietyVista

External References