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

Description

First documented reverse cud on the 2007 Philadelphia Montana State Quarter, CU-25c-2007P-01R(MO) records the initial die rim fracture cataloged on a design featuring a bison skull floating above the Missouri River landscape with the state motto "Big Sky Country." Philadelphia struck 257,000,000 Montana quarters in 2007, the ninth year of the State Quarter program and a point where die manufacturing had absorbed nearly a decade of lessons from the unprecedented demands of annual design changes. Don Everhart's Montana reverse, with its combination of the iconic bison skull, mountainous terrain, and flowing river, presented a complex topographic challenge for die manufacture — varied depths across the design surface created differential stress patterns that could influence where rim fractures initiated. As the "01R" entry, this cud establishes the baseline for Montana quarter die break documentation, marking the first confirmed instance of reverse rim failure for this particular design. No additional cross-references exist beyond the primary Cuds on Coins designation. State Quarter cuds from the program's later years, like this 2007 Montana example, benefit from the established collector awareness and reporting infrastructure built during the program's earlier years, facilitating faster documentation of new die break discoveries.

Attribution History

• Discovered by Heritage Auction
• Expert attribution by Cuds on Coins

External References