1966 Roosevelt Dime - CU-10c-1966-03 Cud

Description

Third cud documented on the 1966 Roosevelt Dime, CU-10c-1966-03 records a rim break from the second year of clad coinage production, when United States dimes transitioned from 90% silver to the copper-nickel clad composition mandated by the Coinage Act of 1965. The 1966 date holds unique status in modern dime history: no mintmarks appeared on any 1966 coins regardless of production facility, a deliberate omission implemented from 1965 through 1967 to discourage hoarding during the silver-to-clad transition. This means CU-10c-1966-03 cannot be attributed to a specific mint by mintmark alone — Philadelphia, Denver, and San Francisco all struck 1966 dimes without identifying marks. Cuds on clad coins differ metallurgically from their silver predecessors because the layered copper-nickel bonding can influence fracture propagation patterns, with cracks sometimes following the boundary between the copper core and nickel-alloy cladding. With no additional cross-references beyond the Cuds on Coins primary designation, CU-10c-1966-03 stands as part of the systematic documentation of die failures during the tumultuous mid-1960s transition period that fundamentally transformed United States coinage composition and collecting practices.

External References