Great Northern Railway Historical Society Blueprint Collection JSBP1424, Essex, Montana, 1945. Great Northern Blueprint Number E-76, Williams Brothers - Rotary Snow Plow On Cletrac Tractor. Plan and Elevation. Interstate Commerce Commission Account Number 57, Work Equipment

Great Northern Railway Historical Society Blueprint Collection JSBP1420, Essex, Montana, 1919. Snowshed # 12. Profile of Line. Authorization for Expenditure 11206. Interstate Commerce Commission Account Number 14, Snow and Sand Fences and Snowsheds. Other ICC account descriptions: ICC Account Number 13, Snow Shed.

Great Northern Railway Historical Society Blueprint Collection JSBP1419, Essex, Montana, 1919. Snowshed # 12. Drainage Sketch. Authorization for Expenditure 11206. Interstate Commerce Commission Account Number 14, Snow and Sand Fences and Snowsheds. Other ICC account descriptions: ICC Account Number 13, Snow Shed.

Great Northern Railway Historical Society Blueprint Collection JSBP1412, Essex, Montana, 1916. Snowshed # 12. Extension. Authorization for Expenditure 2215. Interstate Commerce Commission Account Number 14, Snow and Sand Fences and Snowsheds. Other ICC account descriptions: ICC Account Number 13, Snow Shed.