1955-D Over Mint Mark OMM-006
Error
Description
Cataloged by VarietyVista, this 1955-D Jefferson Nickel exhibits an over mint mark variety where a Denver D punch was applied over a previously placed different mintmark, documenting inter-facility die transfer. Die markers UVC-408 / DMR-009 track three stages: Stage A at EDS (unconfirmed); Stage B with a die scratch from left dome to left balcony at LDS, die scratches above the right roof, a die gouge dot in the lower C of CENT, die gouges above the horizontal bar of the L of PLURIBUS, and obverse at MDS; Stage C with reverse and obverse at LDS. The multiple Monticello architectural scratches and inscription gouges at Stage B provide comprehensive die fingerprinting across the reverse. Composed of 75% copper and 25% nickel at 5.0 grams and 21.21 mm, Felix Schlag's design was struck at Denver. The sixth cataloged OMM for this date suggests significant die sharing between facilities in 1955.
Die Markers
- UVC-408
- DMR-009
- Stage A:
- EDS (unconfirmed)
- Stage B:
- Die scratch from Left dome to Left balcony – LDS
- Die scratches above Right roof
- Die gouge dot in lower C of CENT
- Die gouges above the horizontal bar of the L of PLURIBUS
- Obverse is MDS
- Stage C:
- Reverse and Obverse are LDS
External References
Community & Reference
Related Errors
More Over Mint Mark Errors
Collector 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.




