CU-1C-1985-25 Cud

Description

The relationship between die cracks and cuds extends beyond simple progression — cracks serve as predictive indicators that a cud may be imminent, a concept relevant to CU-1C-1985-25 on the 1985 Philadelphia Lincoln Memorial cent and all entries in the cud census. When a die develops a crack running from an interior design element to the rim, the crack defines one boundary of a potential cud. If a second crack develops nearby and also reaches the rim, the two cracks together outline a section of die that is structurally compromised on three sides — the rim edge and two crack lines. Continued striking loads this isolated section until it separates, producing a cud whose shape corresponds to the area bounded by the two pre-existing cracks. Collectors who identify die crack coins can sometimes predict not only that a cud will form but approximately where and how large it will be, based on the crack geometry. This predictive capacity has led some specialists to actively search for die crack specimens from specific dies, building progressive die-state collections that document the entire fracture narrative from first crack to final separation. Such sequences are among the most instructive exhibits in numismatic error collecting. Struck at Philadelphia on copper-plated zinc planchets at 2.5 grams and 19mm from the 1985 mintage of approximately 5.65 billion cents.

Attribution History

• Discovered by Keynumis on ebay
• CU-1C-1985-25
• Expert attribution by Cuds on Coins

External References