HO 5 ft. Wheelbase Arch Bar Trucks w/RP-25 wheelsets (two trucks)

Back in the late 1800s, this kind of truck was known as a Rigid Diamond Freight-car Truck. This one was built for the Union Tank Line and drawings of it were published in the 1895 Car Builder's Dictionary. Prototype features included a five-foot wheelbase, 20-ton capacity journals and brake shoes that were hung from the truck.

Below is a link for the data sheet about this truck.

TMW-111 / TMW-211 Data Sheet