1970 (S) Lincoln Memorial Cent - Large Date - CU-1C-1970S-05 Rim Cud

Description

Specifically classified as a rim cud rather than a standard cud, CU-1C-1970S-05 on the 1970-S Lincoln Memorial cent documents a shallow die break confined primarily to the rim area of a Large Date business strike. The rim cud designation indicates that the fracture did not penetrate deeply into the design field but instead affected mainly the raised rim zone — the outermost perimeter of the die where compressive forces concentrate during striking as the die simultaneously forms the coin's raised edge and contains the radial flow of metal. Rim cuds represent the most localized form of die failure at the perimeter: part of the die's rim gutter is lost, and on the coin this appears as a raised interruption in the design rim that tracks the rim's course. This subtlety makes rim cuds more challenging to spot during casual examination but equally significant as documentation of die deterioration mechanics.

Cross References

• CU-1C-1970S-05

External References