CU-1C-1952S-07R Cud

Description

Seventh documented reverse cud for the 1952 San Francisco Mint Lincoln Wheat Cent, this die break variety formed when a section of the reverse die rim fractured and separated completely from the die body. Once the broken fragment detached, the resulting cavity filled with metal during each subsequent strike, producing a raised featureless mass along the coin's edge — the hallmark characteristic that gives cud errors their distinctive appearance. The "07R" suffix identifies this as the seventh reverse cud cataloged for the 1952-S date, a count that reflects both the frequency of die rim failures during San Francisco's cent production and the thoroughness of collector documentation. San Francisco struck approximately 137 million cents in 1952, a substantial output for the facility that had been producing coins since the California Gold Rush era of 1854. The mechanical stresses of sustained high-speed striking concentrate at the die rim, where the edge of the design meets the retaining collar, making this the most vulnerable zone for fracture propagation. Cross-referenced as CU-1C-1952S-07R and cataloged by Cuds on Coins, this variety belongs to the well-documented population of Wheat Cent cud errors that collectors actively pursue across the full 1909-1958 date range.

Attribution History

• Discovered by Chuck Newman
• CU-1C-1952S-07R
• Expert attribution by Cuds on Coins

External References