1971-S Doubled Die Obverse WDDO-009

Description

Ninth in the Wexler doubled die obverse sequence for the 1971-S Lincoln Memorial cent, WDDO-009 is attributed to the regular strike production from the San Francisco Mint — one of the business strike doubled dies in a date family dominated by proof varieties. The cross-reference notation in the Wexler attribution files reads "1971-S $1 40% WDDO-009," a designation that appears to carry a data import artifact from the cataloging system where the "$1 40%" text may have been inadvertently associated during database processing. This listing resides under the Lincoln cent hierarchy, and the cross-reference is preserved exactly as recorded in the source attribution. The 1971-S business strike cent population provided ample material for variety discovery — San Francisco produced circulating cents alongside its proof output during this period, and the volume of business strike dies passing through the coinage presses generated opportunities for hub doubling errors at every stage of die preparation. Each WDDO number in the Wexler sequence represents a distinct obverse die that received a misaligned secondary hubbing impression, with the specific class, direction, and magnitude of spread varying from die to die based on the exact nature of the hub misalignment during that particular die's manufacture. WDDO-009's position as the ninth entry confirms the 1971-S date's productivity in generating doubled die varieties across both proof and business strike formats — a date-wide phenomenon rooted in the die preparation practices at San Francisco during the early 1970s, when hubbing technology and quality controls permitted a measurable rate of doubled die production.

Attribution History

• Wexler Variety ID: 1971-S $1 40% WDDO-009
• Expert attribution by Wexler Team

External References