CU-1C-1979D-06 Cud

Description

Numbered CU-1C-1979D-06 in the Cuds on Coins catalog, this variety records the sixth documented rim break on 1979 Denver Mint Lincoln Memorial cents. Six confirmed cuds establishes a robust census for this date-mint combination and indicates that Denver's die population during the 1979 cent production experienced a representative distribution of terminal failures across the press floor. The physics of cud formation are consistent regardless of mint facility — dies under cyclic load develop fatigue cracks at stress concentration points, and the rim's geometric profile makes it the preferential failure site in nearly every case. What varies between entries is the specific die that failed and the unique location of its break, which determine the visual presentation on surviving coins. Collectors pursuing the 1979-D cud series benefit from the fact that Denver's substantial production volumes ensured that each damaged die produced a meaningful number of cud-bearing coins before detection and removal, distributing specimens into the circulating supply where they remain discoverable decades later in rolls, bags, and accumulations. CU-1C-1979D-06 carries no supplementary cross-references and is identified exclusively through its Cuds on Coins catalog designation and the specific break geometry documented therein. The 1979-D cent bears Denver's D mintmark and was struck from 95% copper planchets. Attribution by Cuds on Coins.

Attribution History

• Discovered by Geoffrey Noe
• CU-1C-1979D-06
• Expert attribution by Cuds on Coins

External References