Born-Digital or AnalogAnalogTranscriptSpar consolidated mine. Aspen COLORADO Working force. R.M. News. Pen. 24, 1445 p.1 c.1 Working force; shipments; disbursements; production value. R.M. Mews. Jan. 14, 1885 p.7 a.5 Working force. R.M. News. July 10, 1885 p.3 e.4 Monthly yield; number of men employed. R.M. News. May 10, 1884 p.S c.3CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
