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
- 2098 more...
- ItemWWASMR-29-030 - Seattle Municipal Railway Car 373, Seattle, Washington, 1939
- ItemWWASMR-29-031 - Seattle Municipal Railway Track, Seattle, Washington, 1930
- ItemWWASMR-30-001 - Seattle Municipal Railway Car 399, Seattle, Washington, circa 1939
- ItemWWASMR-30-002 - Seattle Municipal Railway Car 552, Seattle, Washington, circa 1939
- ItemWWASMR-30-003 - Seattle Municipal Railway Car 540, Seattle, Washington, circa 1939
- ItemWWASMR-30-004 - Seattle Municipal Railway Car 397, Seattle, Washington, circa 1939
- ItemWWASMR-30-005 - Seattle Municipal Railway Car 555, Seattle, Washington, 1936
- ItemWWASMR-30-006 - Seattle Municipal Railway Car 586, Seattle, Washington, 1930
- ItemWWASMR-30-007 - Seattle Municipal Railway Car 397, Seattle, Washington, undated
- 20 more...