Great Northern Blueprint Number X15-308-8, Great Northern Track Substation - Steel Details Section E-E, 1929. Other subject categories: Drawing

Great Northern Blueprint Number X15-308-2 , Great Northern Track Substations - Salvage Details, 1929. Other subject categories: Drawing

Great Northern Blueprint Number X15-308-4, Great Northern Track Substation - Steel Details Elevation A-A, 1929. Other subject categories: Drawing

Great Northern Blueprint Number X15-308-7, Great Northern Track Substation - Steel Details Section D-D, 1929. Other subject categories: Drawing

Great Northern Blueprint Number X15-308-3, Great Northern Track Substation - Steel Details Top View, 1929. Other subject categories: Drawing

Great Northern Blueprint Number X17-303-7, Great Northern Cascade Electrification - Trolley Structure Footing Details Electrification Section Number 43, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X17-303-6, Great Northern Cascade Electrification - Trolley Structure 'H' Column Details, Electrification Section Number 43, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X17-303-5, Great Northern Cascade Electrification - Trolley Structure 'H' Column Details, Electrification Section Number 43, 1928. Other subject categories: Drawing

Great Northern Blueprint Number X15-301 Sheet 2, Great Northern Converter Substation - Station Wiring Diagram, 1927. Other subject categories: Drawing

Great Northern Blueprint Number X15-301 Sheet 4, Great Northern Converter Substation - Switchboard Wiring, 1927. Other subject categories: Drawing