Great Northern Blueprint Number X17-300-8, Great Northern Cascade Electrification - Puget Sound Power and Light Company 2300V. Line Crossing Main Line and Track 14 in Appleyard, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-300-18, Great Northern Cascade Electrification - Puget Sound Power and Light Company Crossings at Miller, Ninth and Fifth Streets, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-300-6, Great Northern Cascade Electrification - R F Johnson and others Wire Crossing 4 Miles West of Depot, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-302-2, Great Northern Converter Substation - 11.5 and 44 KV Outdoor Substation, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-301 Sheet29, Great Northern Converter Substation - 60 Volt Bus Room Arrangement Plan and Section, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-301 Sheet 20, Great Northern Converter Substation - Details of Auxillary Terminal Board Wall and Pull Boxes, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-301 Sheet 30, Great Northern Converter Substation - Ground Connections in Building Plan and Details, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-302-6, Great Northern Converter Substation - Plan and Evevation, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-301 Sheet 11, Great Northern Converter Substation- List of Conduits and Conductors, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-301 Sheet 13, Great Northern Converter Substation- List of Conduits and Conductors, 1928. Other subject categories: Drawing