1991 Doubled Die Reverse WDDR-009

Description

Closing out the nine-variety 1991 Philadelphia doubled die reverse sequence, WDDR-009 benefits from triple cross-referencing across major attribution systems: Crawford CDDR-004 and Coppercoins 1991P-1DR-001. This three-way cataloging — Wexler, Crawford, and Coppercoins — provides collectors with independent verification paths and reflects the variety's recognition by multiple attribution authorities working from different analytical frameworks. The Crawford CDDR-004 designation indicates that Billy G. Crawford independently identified and cataloged this die through his overlay analysis methodology, while the Coppercoins 1991P-1DR-001 listing places it within the Coppercoins sequential numbering system. Being designated as both the ninth Wexler variety and the first Coppercoins variety for the date illustrates how different cataloging systems discover and number varieties in different orders, depending on when specimens come to each researcher's attention. The existence of nine doubled die reverses for a single date-mint combination underscores the mechanical challenges inherent in the multi-impression hubbing process used during this era of U.S. Mint die production. Struck at Philadelphia on copper-plated zinc planchets composed of 97.5% zinc and 2.5% copper, weighing 2.5 grams and measuring 19mm.

Attribution History

• Discovered by Louis Schaeffer Cross References: Crawford: CDDR-004, Coppercoins: 1991P-1DR-001
• Crawford: CDDR-004, Coppercoins: 1991P-1DR-001; Wexler Variety ID: 1991 1¢ WDDR-009
• Expert attribution by Wexler Team

External References