CU-1C-1978D-06 Cud

Description

Skipping past catalog position five, CU-1C-1978D-06 is cataloged by Cuds on Coins as the sixth documented rim break on 1978 Denver Mint Lincoln Memorial cents. The gap in the numbering sequence may indicate a variety documented in a separate batch, a reserved catalog position, or a retracted attribution — such gaps are not uncommon in error coin cataloging systems where varieties are sometimes re-evaluated or consolidated over time. Regardless of the numbering, CU-1C-1978D-06 represents a confirmed cud variety: a coin struck by a die that had lost a fragment of rim steel to fatigue fracture, producing a raised, amorphous mass of extruded copper at the location of the missing segment. Denver's 1978 Lincoln cent production of approximately 4.28 billion pieces was sustained by an enormous inventory of die pairs, each of which had a finite service life determined by the mechanical demands of high-speed coining. Terminal rim fractures were an inevitable consequence of running dies through hundreds of thousands of strikes, and CU-1C-1978D-06 documents one such failure event. The variety's unique break geometry — its position on the die circumference, the size of the separated fragment, and the specific design elements affected — provides the diagnostic criteria for attribution. All 1978-D cents were struck from 95% copper planchets and carry Denver's hand-punched mintmark. Attribution by Cuds on Coins.

Attribution History

• CU-1C-1978D-06
• Expert attribution by Cuds on Coins

External References