1997-D Doubled Die Reverse WDDR-007

Description

Representing the seventh distinct die to exhibit reverse doubling among 1997 Denver Mint Lincoln Memorial Cents, WDDR-007 adds another entry to the growing body of evidence that late-1990s cent production at Denver generated measurable hubbing variances at a consistent rate. Each WDDR number in the Wexler catalog identifies a unique physical die whose hubbing deviated from perfect alignment, and the progressive count from WDDR-001 through WDDR-007 maps the scope of variety research applied to this date. The doubled die reverse classification indicates the misalignment occurred during creation of the reverse die specifically, leaving the obverse unaffected. Denver's cent production infrastructure in 1997 utilized Schuler knuckle-joint presses capable of sustained high-speed operation, and repeated thermal cycling and mechanical stress on hubbing equipment contributed to the minor alignment shifts that produce attributable varieties. Cataloged by the Wexler Team under Wexler Variety ID 1997-D 1c WDDR-007, this variety exemplifies how modern die study has expanded the known variety population for dates once considered too common to warrant detailed examination.

Attribution History

• Discovered by Steve Young Cross References: None known
• None known; Wexler Variety ID: 1997-D 1¢ WDDR-007
• Expert attribution by Wexler Team

External References