CU-5c-1975D-04 Cud

Description

With four documented cuds and counting, the 1975-D Jefferson nickel has emerged as one of the more prolific cud-producing dates in the nickel series' modern era. CU-5c-1975D-04, cross-referenced as JNC-75D-01 in the Jefferson Nickel Cuds registry, sits alongside three companion cuds (CU-5c-1975D-01 through -03) in the census for this Denver Mint issue. The JNC cross-reference number "75D-01" indicates this was actually the first 1975-D cud documented in that particular registry, despite being numbered "-04" in the Cuds on Coins system. Denver's 401.9 million nickel production in 1975 required a substantial fleet of die pairs operating across multiple presses, and the statistical reality of high-volume production is that more dies in service means more opportunities for rim fractures. The concentration of four cuds from a single date-mintmark combination invites questions about whether specific production conditions in 1975 -- die steel quality, collar fit, annealing specifications, or striking pressure settings -- contributed to an elevated rim failure rate, or whether the four documented varieties simply represent normal failure statistics for a production run of this magnitude. Each cud tells a localized story: the precise clock position where the rim broke, the size of the die fragment that separated, and whether the break occurred early or late in the die's service life all contribute to understanding the production dynamics of that specific press and die pair. For collectors, four cuds from a single date offer an accessible micro-collection opportunity within the broader Jefferson nickel error series.

Attribution History

• Discovered by Fred Weinberg
• Cross reference number: JNC-75D-01
• Expert attribution by Cuds on Coins

External References