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 3003 - Maintenance Facilities
- 1184 more...
- ItemBB031183 - Northern Pacific Engineering Drawing: Shop Plan - Twin Span, 135 Foot Turntable, undated
- ItemBB031184 - Northern Pacific Engineering Drawing: Shop Plan - Bronze Disk, 135 Foot Turntable, undated
- ItemBB031185 - Northern Pacific Engineering Drawing: Shop Plan - Bronze Disk, 135 Foot Turntable, undated
- ItemBB031186 - Northern Pacific Engineering Drawing: Shop Plan - Pivot Casting, 135 Foot Turntable, undated
- ItemBB031187 - Northern Pacific Engineering Drawing: Shop Plan - Pin and Bolt, 135 Foot Turntable, undated
- ItemBB015390 - Northern Pacific Engineering Drawing: Diesel Washing Platform, Diesel Washing Platform, Livingston, Montana, undated
- ItemBB015764 - Northern Pacific Engineering Drawing: Foundation - 135 Foot Turntable, Turntable, Parkwater, Washington, undated
- ItemBB015765 - Northern Pacific Engineering Drawing: Falsework - Turntable, Turntable, Parkwater, Washington, undated
- ItemBB015766 - Northern Pacific Engineering Drawing: Repairs - Center Beam, Turntable, Parkwater, Washington, 1945
- 118 more...