CU-25c-2007P-01R(UT) Cud

Description

First reverse cud documented for the 2007-P Utah State Quarter, this variety records a die break where a section of the reverse die rim detached entirely, creating the raised featureless mass along the coin's edge that defines a cud error. Utah's State Quarter reverse, designed by Joseph Menna, depicts two locomotives — the Central Pacific's Jupiter and Union Pacific No. 119 — meeting at Promontory Summit with the inscription "Crossroads of the West," and the cud's position relative to these design elements helps specialists identify the specific location of the die fracture. Cataloged by Cuds on Coins with no cross-references, the "01R" designation marks this as the primary reverse cud for the 2007-P Utah issue. Cud formation occurs when accumulated metal fatigue at the die rim reaches a critical threshold, and the stressed section separates under the repeated impact of striking operations. The State Quarters program was the most ambitious U.S. commemorative coinage initiative in history, issuing five new reverse designs annually from 1999 through 2008 for a total of fifty unique designs. Philadelphia struck approximately 255 million Utah quarters in 2007, consuming numerous die pairs across the production run. Die rim fractures are a natural consequence of the enormous compressive forces generated during high-speed coinage production, where each die delivers thousands of strikes at pressures exceeding 35 tons before replacement.

Attribution History

• Discovered by James Metzger
• Expert attribution by Cuds on Coins

External References