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
- 196 more...
- ItemBB032556 - Northern Pacific Engineering Drawing: 20 Foot Track Scale, Track Scale, Centralia, Washington, undated
- ItemBB032557 - Northern Pacific Engineering Drawing: 20 Foot Track Scale, Track Scale, Centralia, Washington, undated
- ItemBB032558 - Northern Pacific Engineering Drawing: 20 Foot Track Scale, Track Scale, Centralia, Washington, undated
- ItemBB032559 - Northern Pacific Engineering Drawing: Scale House and Electrical, Track Scale, Centralia, Washington, undated
- ItemBB032560 - Northern Pacific Engineering Drawing: Weighbridge and Approach Beams, Track Scale, Centralia, Washington, undated
- ItemBB032561 - Northern Pacific Engineering Drawing: Shop Plan - General Arrangement, Track Scale, Centralia, Washington, undated
- ItemBB032562 - Northern Pacific Engineering Drawing: Shop Plan - Pit Modifications, Track Scale, Centralia, Washington, undated
- ItemBB032563 - Northern Pacific Engineering Drawing: Shop Plan - Steel Detail/81, Track Scale, Centralia, Washington, undated
- ItemBB032564 - Northern Pacific Engineering Drawing: Shop Plan - Bill/Steel, Track Scale, Centralia, Washington, undated
- 123 more...