1940-S Doubled Die Obverse DDO-001
Error
Description
Primary among the 1940-S Jefferson nickel's obverse doubled dies, DDO-001 presents an unusual mixed-character diagnostic: light spread combined with medium extra thickness on IN GOD WE TRUST, LIBERTY, the star, and the date. The coexistence of two doubling characteristics — spread (directional separation) and extra thickness (nearly overlapping weight increase) — on the same die suggests a complex hub misalignment that varied in character across different zones of the die face. San Francisco struck approximately 39.7 million nickels in 1940, the third year of Felix Schlag's Jefferson design. VarietyVista catalogs this as UVC-659 with die marriage DMR-004. The four affected elements span the full obverse field, indicating the hub misalignment influenced the entire die face rather than a localized area. As DDO-001, this variety holds the primary designation for 1940-S obverse doubled dies, serving as the benchmark reference. The mixed light-spread-plus-medium-thickness character provides a particularly robust diagnostic toolkit: areas showing spread display visible directional separation under magnification, while areas showing extra thickness exhibit letters and design elements with measurably heavier strokes than normal. Collectors should examine both the directional qualities and the stroke weights to confirm the dual nature of the hub misalignment.
Die Markers
- UVC-659; DMR-004
External References
Community & Reference
Related Errors
More Doubled Die Obverse Errors

1925-S Doubled Die Obverse DDO-001
Doubled Die Obverse
1927 Doubled Die Obverse DDO-001
Doubled Die Obverse
1857 Proof Flying Eagle Cent Doubled Die Obverse FS-401 Snow-5
Doubled Die Obverse
1864 Indian Head Cent (Bronze No L) Doubled Die Obverse FS-1101 Snow-4
Doubled Die Obverse
1866 Indian Head Cent Doubled Die Obverse FS-101 Snow-1
Doubled Die ObverseCollector Essentials
Tools for examining and preserving error coins and die varieties.
10x-20x Jeweler's Loupe
Essential for examining die varieties, doubled dies, and RPMs
Cherry Picker's Guide
The definitive reference for U.S. error coins and die varieties
2x2 Coin Flips & Holders
Protect and organize your finds with archival-quality holders
USB Digital Microscope
Capture detailed images for documentation and community submissions
As an Amazon Associate, NumisDex earns from qualifying purchases.


