2006 (P) Colorado State Quarter - CU-25c-2006P-05R(CO) Cud
Error
Attribution
Discovered by
Chuck Newman
Verified by
Cuds on Coins
Original Research
Description
A reverse cud for the 2006 Philadelphia Colorado State Quarter, extending the die break record for this design. The mountainous landscape creates abrupt relief changes near the rim. Each cud formed at a different position, collectively mapping the most failure-prone zones around the die circumference. Cataloged by Cuds on Coins with no additional cross-references. Philadelphia produced over 274 million Colorado quarters.
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.









