1987 (P) Lincoln Memorial Cent - CU-1C-1987P-03 Rim Cud

Description

Cataloged as CU-1C-1987P-03 with the explicit "P" mint mark suffix that distinguishes it from the main 1987 cud sequence, this rim cud variety on the 1987 Lincoln Memorial cent carries a separate numbering track within the Cuds on Coins reference system. The "P" suffix in the catalog number may reflect a later discovery or a cataloging convention update, since Philadelphia-minted cents of this era do not bear a mint mark on the coin itself — the distinction exists only in the reference system to differentiate this die from the twelve varieties numbered in the CU-1C-1987 main sequence. As a rim cud, this variety records the loss of part of the die's rim gutter at the junction of the die face and the collar wall, which appears on the coin as a raised interruption in the design rim that tracks the rim's course. The rim location is the most mechanically stressed zone of any coining die, where the outward flow of metal during the strike meets the resistance of the collar, and the resulting shear forces make peripheral fractures the most common mode of catastrophic die failure. Struck at Philadelphia on copper-plated zinc planchets (97.5% zinc, 2.5% copper) at 2.5 grams and 19mm.

Cross References

• CU-1C-1987P-03; number: none.

External References