1969 (S) Proof Lincoln Memorial Cent - Typical Die Clash TDC-1C-1969S-01

Description

Cataloged as TDC-1c-1969S-01PF by MadDieClashes, this typical die clash merits special attention because it was discovered on a 1969-S Proof Lincoln cent. The overlay analysis shows the approximate position of the dies when they made contact without an intervening planchet, revealing the geometric relationship between obverse and reverse at the moment of the clash event. That such an error could occur on a proof die pair underscores that even San Francisco's careful proof-line procedures could not entirely eliminate mechanical failures — perhaps during die setup, test striking, or a momentary feed malfunction. This specimen resides in the collection of David Elliot, establishing documented provenance for a variety that combines the appeal of a proof surface with visible clash marks. For collectors of proof errors, the 1969-S proof die clash stands as evidence that the controlled environment of proof production merely reduced rather than eliminated the possibility of die-on-die contact.

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