Donaldson and Kohinoor mill. colorado Idaho Springs District Proposed tramway to mines; list. R." .News. Jan. 27,1884 p.3 c.2 Test run of machinery. R.M.News. Feb. 7,1884 p:3 c.2 Number of stamps operating. R.Af.,'dews. Mar. 12,1885 p.3 c.2 Treats Champion & Donaldson Mnes ore. R.Mlews. Apr. 16,1885 p.3 c.3 Number of stamps working. R.K.News. Apr. 3(,1885 p.3 c.2
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