CU-1C-1960D-04R Rim Cud
Error
Description
Designated CU-1C-1960D-04R by CudsOnCoins, this rim cud appears on the reverse of the 1960-D Lincoln Memorial Cent Small Date. The "R" suffix in the catalog number indicates the cud occurs on the reverse die rather than the obverse, distinguishing it from the more commonly encountered obverse rim cuds in this series. Reverse cuds on Lincoln Memorial cents can affect portions of the Memorial building, the denomination text, or the E PLURIBUS UNUM legend depending on their clock position. The mechanics of cud formation are identical regardless of which die fails: a fragment of die steel fractures away from the rim, and the resulting cavity fills with metal under the enormous pressure of the striking process. The 1960-D Small Date cent was produced in substantial quantities at the Denver Mint, and the repeated impact of striking cycles gradually weakened the die steel, particularly along the rim where stress concentration was greatest. Collectors should compare the reverse cud's location against the CudsOnCoins photographic reference to confirm this specific die attribution.
Attribution History
- Discovered by Josh Mangham
- CU-1C-1960D-04R
- 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.









