CU-25c-1987P-01R Cud
Error
Description
First reverse cud documented for the 1987 Philadelphia Mint Washington Quarter, this variety records a die rim failure where a fragment of the reverse die separated during the striking process. A cud occurs when the mechanical stresses of repeated high-speed striking cause the die rim to fracture, and once the broken piece falls away, the cavity left behind fills with metal to produce a raised blank area on every coin struck afterward. CU-25c-1987P-01R is cataloged by Cuds on Coins as the initial reverse cud entry for this date, establishing the baseline for what may eventually include additional discoveries. The 1987 Philadelphia Mint quarter was produced without a mint mark, as was standard practice for Philadelphia coinage throughout most of the twentieth century — the P mint mark was added to quarters beginning in 1980, so 1987-P coins do carry the distinctive small P on the obverse. The Washington Quarter's long production history, from 1932 through the present, provides one of the most extensive cud catalogs of any denomination, allowing collectors to trace die failure patterns across more than ninety years of continuous production.
Attribution History
- Discovered by Fred Weinberg
- 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.





