Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series010 - Other Railroads
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3012 - Street railroads
- 491 more...
- ItemWWASMR-SPO-040 - Seattle Municipal Railway Track, Seattle, Washington, 1924
- ItemWWASMR-SPO-041 - Seattle Municipal Railway Track, Seattle, Washington, 1929
- ItemWWASMR-SPO-042 - Seattle Municipal Railway Track, Seattle, Washington, circa 1929
- ItemWWASMR-SPO-043 - Seattle Municipal Railway Track, Seattle, Washington, 1919
- ItemWWASMR-SPO-044 - Seattle Municipal Railway Track, Seattle, Washington, circa 1925
- ItemWWASMR-SPO-045 - Seattle Municipal Railway Track, Seattle, Washington, circa 1940
- ItemWWASMR-SPO-046 - Seattle Municipal Railway Track, Seattle, Washington, circa 1940
- ItemWWASMR-SPO-047 - Seattle Municipal Railway Track, Seattle, Washington, 1940
- ItemWWASMR-SPO-048 - Seattle Municipal Railway Car 278, Seattle, Washington, circa 1940
- 1627 more...