CU-1c-1982-17(LD) Rim Cud

Description

Forming the zinc half of the CU-1c-1982-17(LD) rim cud pair, this entry appears on the lighter 2.5-gram copper-plated zinc planchet with the wider large date numerals. As the third rim cud pair in this batch — following CU-09(LD) and CU-12(LD) — this entry contributes to a growing dataset of peripheral fractures documented across both alloy compositions, offering researchers repeated opportunities to compare how the same type of die failure manifests on bronze versus zinc substrates. The copper plating on the zinc planchet introduces a variable absent from the homogeneous bronze alloy: at the rim cud's fracture boundary, where the plating must stretch over the transition from intact design to raised displaced metal, the thin copper layer may exhibit micro-cracking or thinning that reveals the pale zinc core beneath. This diagnostic feature, visible under moderate magnification, can serve as an additional confirmation of zinc composition beyond the standard weight test. For the collector pursuing complete rim cud pairs from the 1982 subtype-specific catalog, the zinc version often presents as the more accessible half of the pair, given the Zinc Large Date's larger surviving population in unsearched accumulations. Attribution by Cuds on Coins.

Attribution History

• Discovered by Steve Young
• Expert attribution by Cuds on Coins

External References