6.7 cm, Betze-Post Mine, Eureka County. G. Ferdock collection. Photo by J. Scovil.
From Minerals of Nevada (NBMG Special Publication 31).
Postcard 14, 4x6", full color, , $0.25
6.7 cm, Betze-Post Mine, Eureka County. G. Ferdock collection. Photo by J. Scovil.
From Minerals of Nevada (NBMG Special Publication 31).
Postcard 14, 4x6", full color, , $0.25