CU-1C-1980D-01 Cud

Description

Cataloged as CU-1C-1980D-01 by Cuds on Coins, this variety documents the first confirmed terminal rim break on 1980 Denver Mint Lincoln Memorial cents. A cud error forms when accumulated metal fatigue in the die steel causes a segment of the die rim to fracture and separate completely — the cavity left behind fills with planchet metal under striking pressure, producing a raised, featureless blob of copper along the coin's edge. The 1980-D cent represented one of the Denver Mint's high-volume production years for the denomination, and the large number of die pairs consumed during the run made die failures statistically inevitable. Each working die endured hundreds of thousands of striking cycles, with the rim area bearing disproportionate stress due to its role as the transition zone between the die face and the collar. CU-1C-1980D-01 initiates the documented cud census for the 1980-D date, and its attribution rests on the specific angular position and extent of the rim separation as documented in the Cuds on Coins reference photographs. The 1980-D cent was struck from the standard 95% copper alloy and carries the D mintmark that Denver had used on Lincoln cents since the facility began striking the denomination. Attribution by Cuds on Coins.

Attribution History

• Discovered by Louis A
• CU-1C-1980D-01
• Expert attribution by Cuds on Coins

External References