Great Northern Blueprint Number 1214-9-1, Cross Sections of Different Size Rails and Angle Bars with Which Joint Tie Plates Are Used, 1899. Other subject categories: Drawing

Great Northern Blueprint Number 1207-34-3, Standard Double Slip Switch 1:7 Crossing, 1900. Other subject categories: Drawing

Great Northern Blueprint Number 1160-1-4, Cross Section of Single Track, 1900. Other subject categories: Drawing

Great Northern Blueprint Number 1214-21-4, Plan of 1:7 Bolted Rigid Frog, 1900. Other subject categories: Drawing

Great Northern Blueprint Number 1160-1-3, Cross Section of Gravel Ballast on Main and Passing Tracks, 1900. Other subject categories: Drawing

Great Northern Blueprint Number 1207-34-1, Details of Double Slip Switch - Bonding and Planing Rail Points, 1900. Other subject categories: Drawing

Great Northern Blueprint Number 1160-1-5, Cross Section of Single Track Roadbed, 1901. Other subject categories: Drawing

Great Northern Blueprint Number 1240-18-1, Great Northern 1:9 Split Switch / 15 Foot Spring Rails, 1902. Other subject categories: Drawing

Great Northern Blueprint Number 1240-18-2, Great Northern 1:9 Split Switch, 1902. Other subject categories: Drawing

Great Northern Blueprint Number 1240-18-3, Great Northern 1:9 Stub Switch, 1902. Other subject categories: Drawing