CU-1C-1977D-09 Cud

Description

Skipping past position 08 in the catalog sequence, CU-1C-1977D-09 is the ninth documented rim break on 1977 Denver Mint Lincoln Memorial cents. The gap between CU-1C-1977D-07 and this entry may reflect varieties cataloged in other batches, reserved positions, or retracted attributions — the sequential numbering within the Cuds on Coins system does not necessarily correspond to chronological order of die use or discovery. Rim cuds are among the most visually striking error types a collector can encounter: when a wedge-shaped fragment of die steel separates from the rim, the resulting cavity allows planchet metal to extrude into a raised, amorphous blob that partially or fully obliterates the normal design elements in that area. The size and position of each break vary from die to die, making every cud variety a unique record of a specific die's terminal failure. Denver's 1977 cent production was carried out at high volume using the 95% copper alloy composition and the hand-punched "D" mintmark standard for the era. Nine documented cuds for a single Denver date attests to the scale of die attrition inherent in high-speed coining operations, where each die pair endured hundreds of thousands of strikes before being retired. No additional cross-reference numbers have been assigned to CU-1C-1977D-09 beyond the primary Cuds on Coins designation. Attribution by Cuds on Coins.

Attribution History

• Discovered by Keynumis on ebay
• CU-1C-1977D-09
• Expert attribution by Cuds on Coins

External References