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
- 729 more...
- ItemWWASMR-JEF-064 - Seattle Municipal Railway Car 660, Seattle, Washington, undated
- ItemWWASMR-NIC-001 - Seattle Municipal Railway Car 203, Seattle, Washington, 1919
- ItemWWASMR-NIC-002 - Seattle Municipal Railway Car 107, Seattle, Washington, 1914
- ItemWWASMR-NIC-003 - Seattle Municipal Railway Car 108, Seattle, Washington, 1913
- ItemWWASMR-NOR-001 - Seattle Municipal Railway Car 293, Seattle, Washington, circa 1939
- ItemWWASMR-NOR-002 - Seattle Municipal Railway Car 384, Seattle, Washington, undated
- ItemWWASMR-NOR-003 - Seattle Municipal Railway Car 355, Seattle, Washington, 1940
- ItemWWASMR-NOR-004 - Seattle Municipal Railway Car 536, Seattle, Washington, 1920s
- ItemWWASMR-NOR-005 - Seattle Municipal Railway Car 297, Seattle, Washington, undated
- 1389 more...