1970-S Doubled Die Obverse DDO-001

Description

Premier doubled die obverse for the 1970-S Roosevelt Dime, DDO-001 displays a light spread on 970 of the date — the three rightmost digits showing doubled outlines from a hub misalignment during die manufacturing. VarietyVista assigns UVC-545 and DMR-002, tracking three die stages: Stage A with the obverse and reverse both in Early Die State, Stage B at Mid Die State (unconfirmed), and Stage C at Late Die State (also unconfirmed). The 1970-S Roosevelt Dime occupies a significant position in modern die variety collecting because the San Francisco Mint produced both proof and business strike versions in 1970, and the die variety documentation must distinguish between these two striking formats. As DDO-001, this variety carries the primary designation for 1970-S obverse doubling, making it the most significant DDO in the date's catalog. The Roosevelt Dime, designed by John R. Sinnock and introduced in 1946, features a left-facing portrait that provides clear reference points for measuring hub doubling — the date numerals in particular serve as highly diagnostic elements because their angular shapes reveal even slight misalignment between hub impressions. A light spread, while requiring magnification to appreciate fully, indicates a measurable hub shift that falls below the threshold of the medium and strong categories but remains sufficient for confident attribution. The 1970-S date is the final year of the silver-proof-only era for dimes, as proof production would continue at San Francisco while business strikes shifted to other facilities. The UVC-545 and DMR-002 codes enable precise cross-referencing within the VarietyVista attribution database.

Die Markers

• UVC-545
• DMR-002
• Stage A:
• Obverse and Reverse are EDS
• Stage B:
• MDS (unconfirmed)
• Stage C:
• LDS (unconfirmed)

Attribution History

• Discovered by James Wiles
• Expert attribution by VarietyVista

External References