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
- 537 more...
- ItemWWASMR-Bus-0131-002 - Seattle Municipal Railway Bus 131, Seattle, Washington, 1926
- ItemWWASMR-Bus-0132 - Seattle Municipal Railway Bus 13X, Seattle, Washington, circa 1930
- ItemWWASMR-BUS-0134 - Seattle Municipal Railway Bus 134, Seattle, Washington, 1926
- ItemWWASMR-Bus-0182 - Seattle Transit System Bus 182, Seattle, Washington, 1949
- ItemWWASMR-Bus-0238 - Seattle Transit System Bus 238, Seattle, Washington, 1940
- ItemWWASMR-Bus-0258 - Seattle Transit System Bus 258, Seattle, Washington, circa 1940
- ItemWWASMR-Bus-0303 - Seattle Transit System Bus 303, Seattle, Washington, 1940
- ItemWWASMR-Bus-0450 - Seattle Transit System Bus 450, Tacoma, Washington, 1943
- ItemWWASMR-Bus-0515 - Seattle Transit System Bus 515, Seattle, Washington, circa 1940
- 1581 more...