1972-D Type I Counter Clash CCL(T1)-1c-1972D-01

Description

Cataloged as CCL(T1)-1c-1972D-01, this 1972-D Lincoln Memorial cent documents a double clashed event that produced two Type 1 counter clashes — a rare and mechanically complex error sequence where the die clash itself creates secondary design transfers that appear as misplaced design elements on the finished coin. The first counter clash manifests as an extra Y from LIBERTY positioned east of the primary Y on the obverse — a weaker impression of the letter transferred during the initial clash and then re-transferred to struck coins as a faint duplicate element beside the intended design. The second counter clash appears on the reverse, showing the top of the Memorial building counter-clashed into an area where it does not belong — the architectural profile transferred from the obverse die during the clashing event and embedded into the reverse die surface. This variety was discovered by Brandon Van Ness, who identified the dual-surface counter clash phenomenon on this 1972-D specimen. The Type 1 designation within the counter clash classification system indicates specific mechanical characteristics of the die contact that generated these transferred impressions — distinguishing it from Type 2 and other counter clash subtypes that involve different geometries of die-to-die interaction. The presence of counter clashes on both obverse and reverse from a single double-clash event demonstrates that the dies made contact at least twice without a planchet intervening, with each clash imparting progressive design transfers that accumulated on both die surfaces simultaneously. Among 1972-D Lincoln cent die varieties, counter clashes represent some of the most mechanistically interesting specimens because they document the physics of die interaction rather than the hubbing errors that produce doubled dies.

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