Railroad Archives Online
- ArkivD0027 - Timothy Miller Collection
- Serie007 - Spokane, Portland, and Seattle Railway
- Underserie009 - Engineering Records
- 008 - Physical plant drawing
- 007 - Track
- ObjektStruc000360 - Spokane, Portland, and Seattle Railway Engineering Drawing, Load Adjuster at Vancouver, Washington, 1949
- ObjektStruc000361 - Spokane, Portland, and Seattle Railway Engineering Drawing, Load Adjuster at Vancouver, Washington, 1961
- ObjektStruc000363 - Spokane, Portland, and Seattle Railway Engineering Drawing, Load Adjuster at Vancouver, Washington, 1949
- ObjektStruc009212 - Spokane, Portland, and Seattle Railway Engineering Drawing, Interlocking Station at North Portland, Oregon, 1948
- ObjektStruc009213 - Spokane, Portland, and Seattle Railway Engineering Drawing, Interlocking Station at North Portland, Oregon, 1948
- 87 mer...