1970-S Doubled Die Obverse DDO-027

Description

Another proof striking from the Large Date obverse die variety ODV-025, DDO-027 on the 1970-S Lincoln Memorial cent displays light spread doubling on LIBERTY, IN GOD WE TRUST, and the date — a spread pattern matching DDO-025 in scope but originating from a separate die with its own unique set of die markers. Attributed as UVC-3436 and DMR-042 in the VarietyVista system, DDO-027 demonstrates how the San Francisco Mint's proof die preparation process could generate multiple dies with similar hubbing anomalies: each working die received its own sequence of hub impressions, and slight variations in hub alignment from one die to the next produced distinct varieties even when the overall character of the doubling appeared comparable. The distinction between DDO-025 (DMR-040) and DDO-027 (DMR-042) rests on die-specific markers rather than the doubling pattern itself, underscoring the importance of examining the full die surface — not just the doubled elements — when attributing 1970-S proof varieties. Light spread on proof coins can be subtle, but the San Francisco Mint's careful proof striking process preserved die details with exceptional fidelity, meaning even marginal doubling is often sharply rendered on the finished coin's frosted devices.

Die Markers

• UVC-3436; DMR-042

External References