CU-1C-1918S-01R Rim Cud

Description

San Francisco's contribution to wartime cent production is documented by this first reverse rim cud for the 1918-S Lincoln Wheat Cent. Unlike Denver's cuds from the same era, the San Francisco Mint operated with its own die supply, production schedules, and press configurations — meaning this rim failure occurred independently of the Denver examples. A rim cud forms when a section of the die rim fractures and separates, leaving a cavity that fills with metal during striking to produce a raised featureless mass. The "R" suffix confirms the reverse as the affected side, where the cud obliterates a portion of the Wheat Ears design. San Francisco's wartime operations balanced cent production with other coinage demands, and the mechanical stresses of high-speed striking ensured that die rim failures remained a regular occurrence regardless of mint facility. The 1918-S is the S-mint counterpart to the 1918-D documented in the same catalog, and collectors tracking rim cuds across mint marks can compare how different facilities experienced die failure on coins of identical design. Cross-referenced as CU-1C-1918S-01R, cataloged by Cuds on Coins.

Attribution History

• Discovered by Chuck Newman
• CU-1C-1918S-01R
• Expert attribution by Cuds on Coins

External References