1972 Doubled Die Obverse DDO-009

Description

Distinctive among the 1972 Philadelphia doubled die obverses for its concentrated doubling presentation, DDO-009 shows a strong spread manifesting primarily as an extra bar above the horizontal element of the numeral 2 in the date — a focused, easily identifiable diagnostic that makes this variety one of the more accessible attributions in the series despite its relatively minor spread on other design elements. Listed as FS-109 in the Cherrypickers' Guide (catalog number 033.59), this variety has earned a place in the standard reference. Die pair codes UVC-2292 and DMR-012 uniquely identify this die marriage. The obverse die carries the ODV-027a classification — the "Not Re-Engraved" variant — consistent with DDO-005 through DDO-008 in showing an unmodified Lincoln bust tie. The strong extra bar above the 2 results from the Class I hub rotation producing maximum separation at that specific point on the die — a geometric consequence of rotational doubling where the degree of visible spread varies across the design depending on each element's distance from the rotation center and its orientation relative to the rotation axis. Points at maximum tangential displacement from the rotation center show the strongest spread, and for DDO-009 that maximum falls squarely on the horizontal bar of the numeral 2. This concentrated presentation makes DDO-009 particularly useful as a teaching example for understanding how rotational (Class I) hub doubling distributes displacement unevenly across a coin's design elements.

Die Markers

• UVC-2292; DMR-012

Attribution History

• FS-109

External References