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The GM10B was a solitary test-bed electric locomotive for freight duties built by General Motors' Electro-Motive Division of the United States in collaboration with ASEA of Sweden. It was built at EMD's La Grange, Illinois plant entering service in August 1976. 


The unique locomotive posing at EMD's LaGrange, IL plant in 1976.

Equipped with B-B-B trucks and a high proportion of Swedish ASEA INC design and technology, the locomotive was designed for high-speed freight service, and spent the entirety its short-lived career in the Northeast Corridor.