Union Pacific labeled their 2-10-2s with TTT to designate the wheel configuration. These powerful locomotives were ideal for hauling heavy tonnage. UP's TTT-6 and 7 were the last and the largest of the class. The TTTs received many modifications through their careers and served until the mid 50s.
Based on the later, modified TTTs, this brass-hybrid model is DC/DCC sound equipped and features a five-pole can motor with skew wound armature and flywheel, full cab detail, nickel silver rods and valve gear, prototypical light operation with golden-white LED headlight and scale operating Kadee(R) couplers.