UDC-1c-1917S-01R Unusual Die Crack

Description

Sharing the same catalog code as the cud-classified entry, this listing approaches UDC-1c-1917S-01R from the Unusual Die Crack perspective — the "U" in UDC standing for "Unusual" and distinguishing this error type from standard die cracks or cuds. The reverse of this 1917-S Lincoln Wheat Cent exhibits die cracks extending inward from both the left and right rims without meeting at the center, a pattern that qualifies as unusual because it involves bilateral crack propagation from opposing rim points rather than the typical single-origin crack radiating in one direction. The near-meeting of opposing cracks — stopping just short of a Bisecting Rim-to-Rim Die Crack — places this failure in a classification gray zone, appearing under both cud and unusual die crack error types as separate listings. San Francisco produced 32.62 million Lincoln Cents in 1917. The unusual die crack designation emphasizes atypical crack geometry rather than the die fragment mechanics that the cud classification highlights. Cataloged by Cuds on Coins, this dual-classification ensures discoverability under either error category, reflecting die failure taxonomy's overlapping nature.

Attribution History

• Discovered by Marvin L
• Expert attribution by Cuds on Coins

External References