Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3001 - Steam Locomotives
- 148 more...
- ItemWWANT181 - Northern Pacific steam locomotive 1263 at Seattle, Washington, circa 1925.
- ItemWWANT182 - Northern Pacific steam locomotive 1263 at Seattle, Washington, in 1924.
- ItemWWANT183 - Northern Pacific steam locomotive 1266 at Seattle, Washington, in 1925.
- ItemWWANT184 - Northern Pacific steam locomotive 1266 at Seattle, Washington, circa 1925.
- ItemWWANT185 - Northern Pacific steam locomotive 1357 at Auburn, Washington, circa 1925.
- ItemWWANT186 - Northern Pacific steam locomotive 1384 at Seattle, Washington, in 1925.
- ItemWWANT187 - Northern Pacific steam locomotive 1384 at Kent, Washington, circa 1925.
- ItemWWANT188 - Northern Pacific steam locomotive 1384 at Auburn, Washington, circa 1925.
- ItemWWANT189 - Northern Pacific steam locomotive 1384 at Fremont, Washington, circa 1925.
- 111 more...