Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3007 - Track
- 19 more...
- ItemStruc006680 - Northern Pacific Engineering Drawing, Interlocking Control Building at Tacoma, Washington, 1963
- ItemStruc006763 - Northern Pacific Engineering Drawing, Load Adjuster and Car Puller at Parkwater, Washington, 1960
- ItemStruc006764 - Northern Pacific Engineering Drawing, Load Adjuster and Car Puller at Parkwater, Washington, 1962
- ItemStruc006765 - Northern Pacific Engineering Drawing, Load Adjuster and Car Puller at Parkwater, Washington, 1962
- ItemStruc006848 - Northern Pacific Engineering Drawing, Load Adjuster at Dilworth, Minnesota, 1970
- ItemStruc006849 - Northern Pacific Engineering Drawing, Load Adjuster at Northtown, Minnesota, 1955
- ItemStruc006850 - Northern Pacific Engineering Drawing, Load Adjuster at Mandan, North Dakota, 1968
- ItemStruc006851 - Northern Pacific Engineering Drawing, Load Adjuster at Mandan, North Dakota, 1968
- ItemStruc006852 - Northern Pacific Engineering Drawing, Load Adjuster at Livingston, Montana, 1960
- 300 more...