Railroad Archives Online
- FondiD0027 - Timothy Miller Collection
- Serija004 - Northern Pacific Railroad Company
- Podserija009 - Engineering Records
- 008 - Physical plant drawing
- 007 - Track
- 321 more...
- DokumentBB037201 - Northern Pacific Engineering Drawing: Shop Plan - Bill of Material, Scale, Longview, Washington, undated
- DokumentBB037202 - Northern Pacific Engineering Drawing: Shop Plan - Load Cell, Scale, Longview, Washington, undated
- DokumentBB037203 - Northern Pacific Engineering Drawing: Shop Plan - Track Switch, Scale, Longview, Washington, undated
- DokumentBB037204 - Northern Pacific Engineering Drawing: Shop Plan - External Wiring Diagram, Scale, Longview, Washington, undated
- DokumentBB037205 - Northern Pacific Engineering Drawing: Shop Plan - Track Scale, Scale, Longview, Washington, undated
- DokumentBB037206 - Northern Pacific Engineering Drawing: Shop Plan - Track Scale, Scale, Longview, Washington, undated
- DokumentBB037207 - Northern Pacific Engineering Drawing: Shop Plan - Weighing in Motion, Scale, Longview, Washington, undated