1972 (S) Proof Washington Quarter - Doubled Die Obverse DDO-001

Description

DDO-001 on the 1972-S Washington quarter features light extra thickness on IN GOD WE TRUST and the date, both key diagnostic zones on John Flanagan's obverse design. Proof die production involved the same hubbing process as business strikes, making doubled dies possible even in the carefully controlled proof environment — the hub misalignment simply occurred during die manufacturing rather than during the striking process itself. Reported by Timothy Wissert, a noted contributor to the Washington quarter doubled die census, DDO-001 holds the primary catalog designation for the 1972-S obverse doublings. The light extra thickness on TRUST and the date digits creates a slightly bolder appearance compared to normal proof strikes, best detected by comparing the affected areas against undoubled proof examples from the same year under 5-10x magnification.

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