Recherche dans la collection - Plan of coal mine operated by Robert A. Salisbury, Winnifred, Alberta. Surveyed 1st July 1914 by O.S. Finnie, D.L.S., Inspecting Engineer, M.L. & Y. Branch, Department of the Interior, Ottawa...Survey extended 9th July 1916... 15th Aug. 1918. [cartographic material]

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