CU-1C-1977D-07 Cud

Description

Cataloged as CU-1C-1977D-07 by Cuds on Coins, this cud variety is the seventh documented rim break on 1977 Denver Mint Lincoln Memorial cents. A cud results from the complete separation of a fragment of hardened die steel from the rim, leaving a cavity that fills with planchet metal during subsequent strikes and produces a raised, featureless mass along the affected portion of the coin's rim. The 1977 Denver cent bore the hand-punched "D" mintmark that characterized all Denver coinage during this era, and the denomination continued to use the 95% copper composition that had been standard since 1962. Seven documented cuds for the 1977-D date indicates a substantial census of terminal die failures — each entry representing a unique die that developed a rim fracture during Denver's high-volume production year. The demanding pace of cent production at the Denver Mint subjected die pairs to relentless mechanical stress, and the rim area remained the most vulnerable zone on the die face due to its thin cross-section and the repeated impact of the collar during each striking cycle. CU-1C-1977D-07 was cataloged without additional cross-reference numbers from other attribution services, and correct attribution requires matching the break's specific position, angular extent, and affected design elements against the Cuds on Coins reference record. Attribution by Cuds on Coins.

Attribution History

• Discovered by Bryan Trigg
• CU-1C-1977D-07
• Expert attribution by Cuds on Coins

External References