The Baldwin Locomotive Works built this mountain-type (4-8-2) fast freight and passenger locomotive for $69,000. It was one of a series of 30 engines and operated for 1,754,373 miles before its 1951 retirement. It has 69½" driving wheels, 28" x 28" cylinders, 210 lbs. boiler pressure, is 88' 6" long, and weighs 598,890 lbs. The trailing axle under the cab is powered by a small, two-cylinder booster engine as low speeds, adding power for starting trains or on hills. Its tender holds 4,500 gallons of oil fuel and 11,700 gallons of water. It uses 10-15 gallons of fuel oil per mile, and produces 3600 horsepower. It was donated by the St. Louis – San Francisco Railway in 1958. The all volunteer St. Louis Steam Train Association restored it to operation between Sept. 1985 and April 1988, and gave it a second overhaul in 1998-99. From 1988 to 2002 it thrilled thousands as it operated on excursions trains throughout the Midwest, as well as being used by the film industry. A second tender carried 13,600 gallons of water to extend the operating range for these excursions.