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
- 1173 more...
- ItemBB031172 - Northern Pacific Engineering Drawing: Shop Plan - Wire Tower, 135 Foot Turntable, undated
- ItemBB031173 - Northern Pacific Engineering Drawing: Shop Plan - Wire Support, 135 Foot Turntable, undated
- ItemBB031174 - Northern Pacific Engineering Drawing: Shop Plan - Cross Frame, 135 Foot Turntable, undated
- ItemBB031175 - Northern Pacific Engineering Drawing: Shop Plan - HS Support, 135 Foot Turntable, undated
- ItemBB031176 - Northern Pacific Engineering Drawing: Shop Plan - Steel Ties, 135 Foot Turntable, undated
- ItemBB031177 - Northern Pacific Engineering Drawing: Shop Plan - Design Drawing, 135 Foot Turntable, undated
- ItemBB031178 - Northern Pacific Engineering Drawing: Shop Plan - Ties, 135 Foot Turntable, undated
- ItemBB031179 - Northern Pacific Engineering Drawing: Shop Plan - Rail Clip, 135 Foot Turntable, undated
- ItemBB031180 - Northern Pacific Engineering Drawing: Shop Plan - Rim Beams, 135 Foot Turntable, undated
- 129 more...