Recherche dans la collection - Welland Canal. Plan showing proposed transmission & telephone lines of the Toronto & Niagara Power Co. south of Thorold with overhead crossing of old canal at Lyndon Street. Submarine cable crossing of new canal below lock 25 & temporary overhead crossing of proposed Welland Ship Canal 25 October 1916. L.D. Hara Suptg. Engr. P.C. No. 2701 Order in Council. [cartographic material]

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