Union Freight Railroad of Boston had several of these. . .looks like Bachmann's three-truck Climax would be a good starting point.
http://www.precisionlocomotivecastings.com/graphics/Climax_1646.jpg
http://gearedsteam.com/climax/images/union_freight_rr_8.jpg
Where they ran:
https://sites.google.com/site/newenglandshortlines/home/page-1/page-2/page-3
https://en.wikipedia.org/wiki/Union_Freight_Railroad (includes roster)