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Recapitulation of operations : Specie Payment mine
Contributor:Welles, A. M.
Report of the committee of investigation of the Dives-Pelican and Seven-Thirty Mining Company
Contributor:Yager, Arthur; Sheild, Chas. H.; Embry, G. W.
Report on the Dives-Pellican and Seven-Thirty mines located at Silver Plume, Clear Creek County, Colorado
Contributor:McReynolds, O. O.
Report of properties of the North American Mining Co.
Contributor:Sanderson, H. S.