Great Northern Blueprint Number X15-301 Sheet26, Great Northern Converter Substation - Switch Cells 60 Volt Bus Room, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-301 Sheet 19, Great Northern Converter Substation- List of Conduits and Conductors, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-301 Sheet27, Great Northern Converter Substation-25 N O.C.B Cell in Basement, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-301 Sheet39, Great Northern Converter Substation-Switch Board and Exciter Field Rheostat Arrangement, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X17-303-1, Great Northern Cascade Electrification - Details of Running and Yard Tracks Number 11, 12 and 13 West End of Appleyard, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X17-303-4, Great Northern Cascade Electrification - Details of Electrification on East End of Appleyard Tracks, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-300-17, Great Northern Cascade Electrification - Farmers Telegraph and Telephone Company Crossings at Miller, Ninth and Fifth Streets, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X17-300-20, Great Northern Cascade Electrification - Power Line Crossing at Orondo Avenue, Skagit and Spokane Street, 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