The 4-4-0 or American Standard type was the most numerous of all steam engines during the 1800s, but by the 1930s the vast majority had been retired. No. 1015, shown in the Bronx, New York in 1934, was scrapped the following year. She was a member of class C (the former class I), built by Schenectady in 1890 and rebuilt in 1905. Dimensions given for this class include 78-inch drivers, 19x24-inch cylinders, and 180 pounds per square inch of boiler pressure. As rebuilt, they weighed 125,000 pounds and produced a tractive force of about 17,000 pounds.