1971 (D) Lincoln Memorial Cent - SKH-1c-1971D-29 Spiked Head

Description

SKH-1c-1971D-29 on the 1971-D Lincoln Memorial cent was cataloged by Cuds on Coins on February 14, 2018. The trajectory from SKH-01 through SKH-29 spans roughly two years of active discovery work — the first entries documented in 2016, with the catalog expanding through 2017 and into early 2018 as variety specialists continued extracting new finds from the vast population of surviving 1971-D cents. Each discovery adds another data point to what has become a comprehensive census of die crack behavior across a large population of nominally identical tools: twenty-nine separate obverse dies, all manufactured to the same specifications and deployed under similar production conditions, each developing a fatigue crack at the same design feature but producing a geometrically distinct spike. No external cross-references have been documented.

Cross References

• Cross reference: none. 02/14/2018.

External References