1970-S Doubled Die Obverse WDDO-049

Description

A proof issue from the 1970-S Large Date hub, WDDO-049 documents a doubled die obverse on a die used in San Francisco's proof production line. Proof doubled dies hold particular interest among variety collectors because the proof manufacturing process — polished planchets, polished dies, multiple strikes at elevated pressure, controlled atmosphere — produces coins with exceptionally sharp definition that renders hub doubling with unusual clarity. Details that might be ambiguous on a business-strike specimen become decisively visible on a proof surface, where the contrast between mirrored fields and frosted design elements amplifies even modest displacements between hub impressions. No confirmed cross-references have been established for WDDO-049. Among the 1970-S proof doubled dies, this variety occupies a position in the upper catalog reaches where documentation may be less comprehensive than for earlier, more widely studied entries — a pattern common across extensive variety catalogs where the initial wave of research captures the most dramatic examples and subsequent work gradually fills in subtler varieties over years or decades. For collectors specializing in proof Lincoln cent varieties, the 1970-S date offers a uniquely dense population of proof WDDOs spanning multiple doubling classes and magnitudes, making it a cornerstone date for proof doubled die collecting within the Memorial cent series.

Attribution History

• s:; Wexler Variety ID: 1970-S 1¢ Pr WDDO-049
• Expert attribution by Wexler Team

External References