1970 Doubled Die Obverse WDDO-006

Description

Cross-referenced to Coppercoins 1970P-1DO-001, WDDO-006 on the 1970 Lincoln Memorial cent holds the distinction of being the first doubled die obverse cataloged in the Coppercoins system for this date — a numbering priority reflecting its place in the early discovery history of 1970-P DDO varieties. The Coppercoins system uses its own independent cataloging sequence, so the -001 suffix indicates this die was among the first documented by that research team regardless of when Wexler assigned his WDDO-006 designation. This variety exemplifies how the same physical die can carry different catalog numbers across attribution systems, and collectors benefit from recording all known cross-references when documenting their specimens. Philadelphia's enormous 1970 production demanded hundreds of working dies, each sunk through multiple hub impressions where any slight shift between squeezes would embed permanent doubling in the die face. WDDO-006 represents one die where the hub shifted enough to leave detectable doubling, documented independently by both research programs.

Attribution History

• Discovered by John A. Wexler Cross References: Coppercoins: 1970P-1DO-001
• Coppercoins: 1970P-1DO-001; Wexler Variety ID: 1970 1¢ WDDO-006
• Expert attribution by Wexler Team

External References