2006 (P) Colorado State Quarter - CU-25c-2006P-08R(CO) Cud

Description

CU-25c-2006P-08R(CO) may represent progressive die deterioration on a die pair that also produced the -07R cud, or it may document an entirely separate die. When consecutive catalog numbers appear for the same coin type, researchers examine fracture location, size, and shape to determine whether two cuds originated from the same die at different failure stages or from different dies altogether. Progressive die deterioration is well documented — once a crack initiates in the die rim, continued striking causes it to propagate until a section separates, and the remaining rim may develop secondary fractures as structural integrity degrades. The 2006-P Colorado State Quarter, featuring Norman E. Nemeth's depiction of Longs Peak, was struck in enormous quantity at Philadelphia. For collectors assembling a comprehensive set of Colorado quarter die varieties, entries like -08R represent the advanced stages of a catalog that grew during the years following release.

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