Railroad Archives Online
- CollectionE0298 - Cordell Newby Photograph Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3004 - Railroad passenger cars
- 52 more...
- ItemCNBk3img330 - Great Northern Railway Express Box Car 2628 Express mail storage Car.
- ItemCNBk3img331 - Great Northern Railway Box Car 2534 Empire Builder scheme.
- ItemCNBk3img332 - Great Northern Railway Express Box Car 2628 Express mail storage Car; end view detail photo.
- ItemCNBk3img333 - Great Northern Railway Express Box Car 2630 at Wenatchee, Washington in 1974.
- ItemCNBk3img334 - Great Northern Railway Express Box Car 2234 Railway Express Car.
- ItemCNBk3img335 - Great Northern Railway Express Box Car 2636, Railway Express Car at Wenatchee, Washington in 1970.
- ItemCNBk3img336 - Great Northern Railway Express Box Car 2500 Aluminum express and mail Car.
- ItemCNBk3img337 - Great Northern Railway Postal Car 1103, Railway Post Office (RPO) Baggage Car at St. Paul, Minnesota in 1973.
- ItemCNBk3img338 - Great Northern Railway Postal Car 1104, Railway Post Office (RPO) Baggage Car at St. Paul, Minnesota in 1973.
- 208 more...