LDB4-1943-001 Die Break

Description

Cataloged as LDB4-1943-001, this die break on the 1943-D Lincoln wheat cent documents a significant fracture in a working die at the Denver Mint during the wartime steel cent production year. The LDB4 classification within the Cuds on Coins system designates a large die break of severity level 4, indicating a substantial fracture that goes beyond hairline cracks or minor rim chips. Denver struck approximately 217.7 million zinc-coated steel cents in 1943, contributing to the national total alongside Philadelphia's 684.6 million and San Francisco's 191.6 million. The zinc-coated steel composition — adopted to conserve copper for military applications during World War II — subjected dies to greater stress than the standard bronze planchets, as the harder steel blanks required more force to flow into the die recesses and fill the design detail. This increased striking pressure accelerated all forms of die deterioration, including the major fractures classified as large die breaks. A die break of this severity produces a prominent raised irregular line or ridge on the struck coin, tracing the path of the fracture through the die steel. Unlike the fine hairline cracks that develop gradually during normal die life, a level 4 large die break represents a significant structural failure that would likely have prompted die removal from production shortly after discovery. Cataloged by Cuds on Coins, LDB4-1943-001 establishes the first documented large die break for the 1943-D issue, a date where the combination of hard planchets and high production volume created conditions ripe for dramatic die failures. Collectors should look for the prominent raised fracture line under 5-10x magnification, noting that the break's path, width, and extent distinguish it from minor die cracks and post-striking damage.

Attribution History

• Discovered by Mike Antenucci
• Expert attribution by Cuds on Coins

External References