SKH-1C-2023-02 Spike Head

Description

Assigned the second sequential position in the 2023 Philadelphia Lincoln Shield cent spike head census, SKH-1C-2023-02 extends the die crack census into one of the most recent production years cataloged. The 2023 date continues the Lincoln Shield design that has been in production since 2010, featuring Victor David Brenner's enduring Lincoln portrait on the obverse paired with Lyndall Bass's Union Shield reverse. Philadelphia's cent production in 2023 maintained the multi-billion-piece output levels characteristic of modern coinage, ensuring that die cracking at Lincoln's hair crown — the stress concentration zone where spike heads originate — continued to produce attributable varieties at a predictable rate. The spike head phenomenon is unique among die varieties in its combination of visual drama and production frequency: unlike doubled dies, which require specific hub misalignment events during die manufacturing, spike heads arise from the normal fatigue failure of die steel under cyclic loading, making them far more common while remaining individually unique in their crack geometry and spike profile. The diagnostic for SKH-1C-2023-02 is the specific crack path and resulting spike shape that distinguish this particular die from SKH-1C-2023-01 and any subsequent 2023 spike heads — each die develops its fracture along a unique trajectory determined by micro-structural variations in the steel, striking force distribution, and accumulated fatigue cycles. Collectors pursuing a comprehensive spike head collection organize specimens by year and sequential catalog number, and the 2023 entries represent recent additions to a census that spans over a decade of Shield cent production. Examination under 5-10x magnification of the area above Lincoln's hair line, focusing on any raised projection extending toward the rim, will reveal spike head varieties on circulated as well as uncirculated specimens.

Attribution History

• Discovered by John Nugent
• SKH-1C-2023-02
• Expert attribution by Cuds on Coins

External References