1989 (P) Lincoln Memorial Cent - CU-1C-1989-01 Cud

Description

Cataloged as CU-1C-1989-01 and cross-referenced as LC-ND-31 in the Cud Book and FDC-1c-1989-01 in the floating die clash registry, this cud occupies a unique position in the 1989 Lincoln cent error census: it shares the same obverse die as the floating die clash enriched under the FDC-1c-1989-01 designation. This die relationship means the break came first: a fragment broke away from the die, leaving the cud, and the loose fragment was then struck in the press, transferring part of its design to the die as the floating die clash. The progression from clash to cud on a single die documents the mechanical degradation of die steel under the repeated stresses of high-speed production. Cuds form when a section of the die rim fractures and breaks away, leaving a void in the die face that fills with metal during striking, creating a raised featureless blob at the edge of the coin. The LC-ND-31 cross-reference uses the Cud Book's Lincoln Cent numbering system, where ND indicates the catalog number was assigned without a specific date-position correlation. Struck at the Philadelphia Mint on a copper-plated zinc planchet (97.5% zinc, 2.5% copper) weighing 2.5 grams at 19mm diameter.

Cross References

• CU-1C-1989-01; number: LC-ND-31 & FDC-1c-1989-01

External References