There are 3 matches

Collection Authorizer Collection name Reference
43512D. Bottjer USNM703, Old Word Ranch, Glass Mountains (= Reef 2486) Roadian - Permian 3 - Texas Cooper and Grant (1972)
43517D. Bottjer USNM703c, Old Word Ranch, Glass Mountains Kungurian - Permian 2 - Texas Cooper and Grant (1972)
101807M. Clapham USNM726d, Hess Canyon, Glass Mountains Roadian - Permian 3 - Texas Cooper and Grant (1972)

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