1939 Jefferson Nickel - Reverse of 1940 - Doubled Die Obverse WDDO-012
ErrorAttribution
Discovered by
Brian Ribar
Verified by
Brian A. Ribar
Original Research
Description
Attributed by Brian A. Ribar, the 1939 WDDO-012 Jefferson nickel is a Class VI Distended Hub Doubling variety, one of the rarest doubling classes in numismatics. Class VI doubling occurs when hub material physically distends during the hubbing process, producing extra thickness rather than the lateral separation seen in more common doubling classes. On this variety, strong extra thickness is visible on LIBERTY, the star, and the date, with lesser but still detectable thickening on IN GOD WE TRUST. The obverse carries die scratches above both the left and right porches of Monticello, serving as useful die markers. The reverse displays the Type II step design, confirming this as a Reverse of 1940 variety, one of the earliest uses of the modified reverse hub. Class VI varieties are genuinely scarce across all denominations because the distension mechanism requires unusual conditions during die production, making authenticated examples particularly valued by specialists in die-manufacturing errors.
Cross References
- Wexler Variety ID: 1939 WDDO-012
External References
Community & Reference
Related Errors
More Doubled Die Obverse Errors

1937-D Doubled Die Obverse WDDO-005
Doubled Die Obverse
1927 Doubled Die Obverse WDDO-001 / DDO-001
Doubled Die Obverse
1939 Doubled Die Obverse WDDO-001 / 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 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.
