Born-Digital or AnalogAnalogTranscriptRobinson brothers consolidated copper & silver mining company Incorporates to operate, Summit Co., COLORADO R. M. News. Mar. 2, 1881 p.2 c.2 Incorporates to operate, Summit Co. Colo. DENVER REPUBLICAN Mar. 1, 1881 p.4 c.3CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
