CU-10c-1991P-01R Cud
Error
Description
First documented reverse cud for the 1991 Philadelphia Mint Roosevelt Dime, this variety establishes the baseline entry for cud die errors on the 1991-P date. A cud occurs when a section of the die rim fractures and the broken piece separates, leaving a void that fills with metal during subsequent strikes to produce a raised featureless mass on the finished coin. The CU-10c-1991P-01R designation follows the standardized Cuds on Coins catalog format, identifying this as a dime cud from the Philadelphia Mint in sequence position one on the reverse die. Roosevelt Dimes of this era were struck in copper-nickel clad composition at production volumes measured in hundreds of millions, ensuring a steady supply of circulating coinage. Die rim fractures are an inherent risk of high-speed production, where the repeated impact of striking gradually weakens the die at stress concentration points along the rim. As the first cataloged cud for this date, CU-10c-1991P-01R may eventually be joined by additional entries as collectors continue to examine 1991-P dimes from circulation finds, mint-sealed rolls, and bag searches.
Attribution History
- Discovered by Chuck Newman
- Cross reference: none. 10/01/2013.
- Expert attribution by Cuds on Coins
External References
Community & Reference
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.




