RIDB-1c-1960D-04(LD) (LD) Retained Interior Die Break

Description

Documented by CudsOnCoins as RIDB-1c-1960D-04(LD), this retained interior die break on the 1960-D Lincoln Memorial Cent Large Date carries a significant cross-reference: an RPM (repunched mintmark) along with die chips on the B and R of LIBERTY and on the 9 of the date. The presence of an RPM on the same die means this coin exhibits both a mintmark variety and a retained interior die break, making it a dual-interest piece for error and variety collectors alike. The die chips on LIBERTY and the date serve as secondary diagnostics that help confirm attribution independent of the retained break itself. A retained interior die break forms when a fracture develops within the die field but the broken section stays in place, shifting slightly under striking pressure to create a raised area on the coin. The Large Date subtype was produced during the earlier phase of Denver's 1960 cent output, and the combination of an RPM with a retained break on the same die suggests this die saw prolonged service under heavy production demands.

Attribution History

• Discovered by Zhenghui Lin
• Cross reference number: RPM, Die Chips on “B & R” in LIBERTY and “9” on the date.
• Expert attribution by Cuds on Coins

External References