1990 (P) Lincoln Memorial Cent - CU-1C-1990-03 Rim Cud

Description

Classified specifically as a rim cud with no known cross-references to other catalogs, CU-1C-1990-03 on the 1990 Philadelphia Lincoln Memorial cent documents a die fracture confined to the rim zone rather than extending inward to disrupt field design elements. A rim cud represents the loss of part of the die's rim gutter — the feature that creates the coin's protective border — and appears on the coin as a raised interruption in the design rim that tracks the rim's course. This confinement to the rim makes rim cuds more subtle than their field-penetrating counterparts and increases the likelihood of confusion with post-mint damage such as counting machine marks or rolling machine contact. Authentication requires careful examination of the anomaly's surface texture: genuine rim cuds display metal flow consistent with the striking event, while post-mint damage produces displaced metal with directional characteristics inconsistent with die impression. Cataloged on September 1, 2013, CU-03 represents one of the later additions to the 1990 Philadelphia cud inventory. Struck on copper-plated zinc planchets composed of 97.5% zinc and 2.5% copper, weighing 2.5 grams and measuring 19mm.

Cross References

• CU-1C-1990-03; none. 09/01/2013.

External References