Three forms of commuter train propulsion are seen in NJ Transit’s yard in Dover, New Jersey, representing two twenty-year intervals. in railroad technology. The MU cars were delivered to the DL&W in 1929-30, while the F7A was built in 1950 as C&NW 4100A. In the distance is an Erie Lackawanna/NJ DOT U34CH, produced by General Electric in the early 1970’s.
