1971 (S) Proof Roosevelt Dime - Repunched Mintmark RPM-004

Description

Cataloged by VarietyVista as UVC-562 with die marriage reference DMR-007, the 1971-S Repunched Mintmark RPM-004 is a proof Roosevelt Dime displaying an S/S Tilted repunched mintmark — where the San Francisco mintmark punch was applied twice with the second impression at a different rotational angle, creating a tilted displacement pattern rather than a simple directional shift. The die state progression lists Stage A with both obverse and reverse in early die state, Stage B as mid-die-state (unconfirmed), and Stage C as late die state (unconfirmed). As a proof coin struck at the San Francisco Mint, this dime was produced on specially polished planchets with polished dies, yielding the mirror-like fields and sharply defined devices characteristic of proof production — conditions that make repunched mintmark features more readily visible because the high-quality surface captures fine die details with exceptional fidelity. John R. Sinnock's Roosevelt Dime design was introduced in 1946 to honor President Franklin D. Roosevelt, whose association with the March of Dimes campaign against polio made the dime denomination a natural choice for the memorial design. By 1971, the proof dime was struck in clad composition (outer layers of 75% copper and 25% nickel over a pure copper core; 91.67% copper and 8.33% nickel overall) weighing 2.27 grams with a 17.9 mm diameter, as 90% silver had been eliminated from standard proof sets after 1964. The RPM-004 designation indicates this is the fourth documented repunched mintmark for the 1971-S proof dime, and the tilted classification distinguishes it from the directional RPMs (north, south, east, west) cataloged under other numbers for this same date.

Die Markers

• UVC-562
• DMR-007
• Stage A:
• Obverse and Reverse are EDS
• Stage B:
• MDS (unconfirmed)
• Stage C:
• LDS (unconfirmed)

External References