View All 1971 (S) Proof Kennedy Half Dollar

1971-S Doubled Die Obverse DDO-015

Error
1971 (S) Half Dollar Doubled Die Obverse error coin
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Verified LegacyDoubled Die Obverse

Attribution

V

Verified by

VarietyVista

Market Value
N/A
Rarity Index
N/A
Discovery Date
1971
Last Sold
N/A

Description

Fifteenth in the obverse doubled die census for the 1971-S Kennedy half dollar, DDO-015 displays light spread on WE TRUST, the Y of LIBERTY, and the digits 71 in the date on Gilroy Roberts's portrait of President John F. Kennedy. VarietyVista assigned identifiers UVC-363 and DMR-019, documenting three die stages: Stage A at EDS (unconfirmed), Stage B where both obverse and reverse have progressed to mid die state (MDS), and Stage C at LDS (unconfirmed). The confirmed MDS designation for Stage B provides collectors with a documented intermediate die state for tracking production progression. This is identified as a proof striking, consistent with San Francisco's role as the exclusive proof production facility from 1968 onward. The notation that the obverse employs ODV-003 (Obverse Design Variant 003) indicates a specific master die lineage distinguishable from the more common obverse variants used for 1971-S proof production. San Francisco struck proof Kennedy halves for inclusion in annual proof sets, using specially prepared dies and polished planchets that produce the mirror-like fields characteristic of proof coinage. The light spread classification means the doubling manifests as subtle thickening rather than dramatic separation — the secondary hub impression sits close to the primary across WE TRUST, the Y of LIBERTY, and the date digits. Kennedy half dollar proof varieties from the early 1970s attract dedicated collector interest, as the series was still relatively new and the large planchet size makes doubled die diagnostics easier to examine. Magnification of 15-20x with angled illumination helps reveal the displaced secondary impressions on the affected inscription elements.

Die Markers

  • UVC-363
  • DMR-019
  • Stage A:
  • EDS (unconfirmed)
  • Stage B:
  • Obverse and Reverse are MDS
  • Stage C:
  • LDS (unconfirmed)

Attribution History

  • Discovered by Frank Baumann
  • Expert attribution by VarietyVista

External References

Additional Notes

Proof. Obverse is ODV-003.

Last updated: August 31, 2026

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