CU-1C-1974D-20 Cud
Error
Description
Closing out the known 1974-D cud catalog at the twentieth documented position, CU-1C-1974D-20 represents the final confirmed rim break variety on Denver Mint Lincoln Memorial cents from this date. Twenty cuds from a single date-mint combination is a remarkable total that places the 1974-D cent among the most extensively documented dates for rim break errors in the entire U.S. coinage series. A cud forms when a segment of the die's rim fractures and detaches completely, creating a cavity that produces a raised, featureless blob of metal on every coin struck from the damaged die until it is detected and replaced. The progression from CU-1C-1974D-01 through -20 chronicles at least twenty separate terminal die events across Denver's 1974 production run — a run that generated approximately 4.24 billion cents. This final entry carries no additional cross-reference numbers beyond the primary Cuds on Coins designation. For collectors pursuing a complete type set of 1974-D cuds, CU-1C-1974D-20 is the capstone piece, though the open-ended nature of error discovery means that additional varieties could theoretically surface in the future if previously unreported specimens are submitted to attribution services. As with all cuds in this dense census, definitive identification requires careful comparison of the break's clock-position, arc-length, and the specific obverse or reverse design elements affected against the published reference images maintained by Cuds on Coins.
Attribution History
- Discovered by Marvin L
- CU-1C-1974D-20
- Expert attribution by Cuds on Coins
External References
Community & Reference
Related Errors
More Cud 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.









