Railroad Archives Online
- CollectionD0011 - James M. Fredrickson Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3001 - Steam locomotives
- 612 more...
- ItemJMF00-00151.5 - Northern Pacific steam locomotive 249 at Tacoma, Washington, in 1936.
- ItemJMF00-00152.0 - Northern Pacific steam locomotive 252, circa 1925.
- ItemJMF00-00153.0 - Northern Pacific steam locomotive 252 at Portland, Oregon, circa 1925.
- ItemJMF00-00153.1 - Northern Pacific steam locomotive 252 at Tacoma, Washington, in 1934.
- ItemJMF00-00153.2 - Northern Pacific steam locomotive 252 at Tacoma, Washington, in 1935.
- ItemJMF00-00154.0 - Northern Pacific steam locomotive 253 in 1916.
- ItemJMF00-00155.0 - Northern Pacific steam locomotive 255 at Portland, Oregon, circa 1915.
- ItemJMF00-00156.0 - Northern Pacific steam locomotive 258, circa 1915.
- ItemJMF00-00157.0 - Northern Pacific steam locomotive 271, circa 1925.
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