2-10-4 No. 854, of class T-1, represents the first group of Texas type locomotives delivered to the Chicago Great Western in this builder's photo. Lima Locomotive Works constructed them to a design similar to that of the pioneering "super-power" 2-10-4s delivered to the Texas & Pacific in 1925, from which the type received its name. The CGW locomotives, however, were coal-fired and had the Coffin feedwater heater instead of the Elesco type used on the T&P engines. They had cylinder dimensions of 29x32 inches, 255 p.s.i. of boiler pressure, and a 63-inch driver diameter. With a 100-square-foot grate area, they had 4769 square feet of evaporative heating surface and 1325 square feet of superheater surface. They weighed 455,310 pounds minus tender, and put out 92,590 pounds of tractive force. The advent of the 2-10-4s enabled the "Great Western" to run fewer, but longer, trains — an economizing measure that lasted into the diesel era when the railroad was notorious for its outsized lashups of diesel units. All the CGW's 2-10-4s were out of service by 1950, and none were preserved.