PC-10c-1998P-01 Pre-Cud

Description

Representing a modern-era die failure on one of America's longest-running coin designs, the PC-10c-1998P-01 is a pre-cud variety discovered on the 1998-P Roosevelt dime — a modern clad issue from John R. Sinnock's design that has been in continuous production since 1946, making it the longest-running active U.S. coin design at the time of this die's use. A pre-cud marks the earliest visible stage of incipient die rim failure, where a network of fine interconnected cracks has formed along the rim but the enclosed die section has not yet begun to displace or separate. No cross-references from other attribution services have been established for this variety. Philadelphia produced approximately 1.16 billion dimes in 1998, an enormous production run that consumed working die pairs at a prodigious rate — and it is precisely this high-volume production environment where die fatigue generates the rim fracture patterns that pre-cuds document. Pre-cuds on modern clad coinage offer insight into contemporary die steel performance: despite improvements in metallurgy and die manufacturing since the early 20th century, the rim area where the die face meets the die collar remains a stress concentration zone vulnerable to fracture under the cyclic loading of high-speed coining operations. The diagnostic features of a pre-cud differ from ordinary die cracks in their geometry: rather than a single linear crack traversing the die, a pre-cud shows multiple cracks forming an arc or closed pattern that begins to isolate a section of the rim, foreshadowing the fragment that may eventually break free. Collectors examining this variety should use 15-20x magnification with oblique lighting to trace the crack network along the rim, verifying that the cracks form a boundary pattern rather than simple linear fractures.

Attribution History

• Discovered by Pete Apple
• Expert attribution by Cuds on Coins

External References