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
- 1904 more...
- ItemJMF00-01170.1 - Northern Pacific steam locomotive 2090 at South Tacoma, Washington, in 1934.
- ItemJMF00-01171.A - Northern Pacific steam locomotive 2093 in 1916.
- ItemJMF00-01172.0 - Northern Pacific steam locomotive 2095 at South Tacoma, Washington, in 1937.
- ItemJMF00-01173.0 - Northern Pacific steam locomotive 2095 at Portland, Oregon, in 1929.
- ItemJMF00-01173.1 - Northern Pacific steam locomotive 2100 at South Tacoma, Washington, in 1936.
- ItemJMF00-01174.0 - Northern Pacific steam locomotive 2103 at Dilworth, Minnesota, in 1943.
- ItemJMF00-01175.0 - Northern Pacific steam locomotive 2107 at Portland, Oregon, circa 1915.
- ItemJMF00-01176.0 - Northern Pacific steam locomotive 2107 at Portland, Oregon, circa 1915.
- ItemJMF00-01177.0 - Northern Pacific steam locomotive 2108 at Portland, Oregon, in 1911.
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