1966 Lincoln Memorial Cent - CU-1C-1966-12 Cud
Error
Attribution
Discovered by
Keith Bock
Verified by
Cuds on Coins
Original Research
Description
Recorded as CU-1C-1966-12, this twelfth cud variety for the 1966 Lincoln cent continues to expand the catalog of die rim failures from this peak-production year. The process of documenting and cataloging cud varieties is an ongoing endeavor driven by a dedicated community of error and variety specialists. The Cuds on Coins project, which attributed this variety, maintains a systematic catalog of cud die breaks across all U.S. coin denominations, assigning sequential designations within each date and denomination to create a comprehensive reference. For the Lincoln cent series, the cataloging prefix CU-1C indicates a cud (CU) on a one-cent coin (1C), followed by the date and a sequential number within that date. This standardized nomenclature allows collectors and researchers to reference specific varieties unambiguously and to track the growth of the catalog over time as new discoveries are reported. The 1966 cent was produced at the Philadelphia Mint without mint marks, consistent with the Coinage Act of 1965 mandate. Cud varieties on 1966 cents are exclusively from business strike dies, as the SMS production used a smaller, more carefully monitored die population. Cross-referenced as CU-1C-1966-12 and attributed by Cuds on Coins. Struck on a 3.11-gram, 19mm planchet of 95% copper and 5% zinc.
Cross References
- CU-1C-1966-12
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.









