Great Northern Blueprint Number X15-303-5, Great Northern Converter Substation - Conduit Plan, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-301 Sheet24, Great Northern Converter Substation - Manhole and Duct Run Location Plan and Conduit Arrangement in Manhole Number 1, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-301 Sheet25, Great Northern Converter Substation - Switch Board Channels for Boards in Great Northern and Puget Sound Power and Light Company Substations, 1928. Other subject categories: Drawing

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