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
- 525 more...
- ItemWWASMR-SPO-074 - Seattle Municipal Railway Track, Seattle, Washington, circa 1920
- ItemWWASMR-SPO-075 - Seattle Municipal Railway Track, Seattle, Washington, 1924
- ItemWWASMR-SPO-076 - Seattle Municipal Railway Track, Seattle, Washington, 1927
- ItemWWASMR-SPO-077 - Seattle Municipal Railway Track, Seattle, Washington, 1927
- ItemWWASMR-Bus-036 - Seattle Municipal Railway Bus 36, Seattle, Washington, 1937
- ItemWWASMR-Bus-0101 - Seattle Municipal Railway Bus 101, Seattle, Washington, circa 1919
- ItemWWASMR-Bus-0102 - Seattle Municipal Railway Bus 102, Seattle, Washington, circa 1919
- ItemWWASMR-Bus-0112 - Seattle Municipal Railway Bus 112, Seattle, Washington, 1940
- ItemWWASMR-Bus-0112-002 - Seattle Transit System Bus 112, Seattle, Washington, 1949
- 1593 more...