Baldwin DS-4-4-660

The Baldwin DS-4-4-660 was a four-axle, 660 horsepower diesel-electric switcher locomotive built by Baldwin Locomotive Works at its Eddystone, Pennsylvania, factory between 1946 and 1949. It replaced the 660 horsepower VO-660 in the catalog and was in turn replaced by the 750 horsepower DS-4-4-750, and it was the low-power companion to the DS-4-4-1000. 139 were built. Survivors include Sloss Sheffield Steel 30 at the Sloss Furnaces National Historic Landmark in Birmingham, Alabama, and Chesapeake Western 662 at the Virginia Museum of Transportation in Roanoke.