In 1916 Baldwin Locomotive Works delivered 20 2-10-2s to the St. Louis-San Francisco (known as the "Frisco"), numbered 1-20. These locomotives, eventually totaling 60 in number, were known as class 1 after the first engine of the group. No. 20, last of this first order, appears here sometime in the mid-1930s at an unspecified location (likely St. Louis or Springfield, Missouri). These 2-10-2s had 29x30-inch cylinders, a 60-inch driver diameter, and a boiler pressure of 200 p.s.i. They produced 71,485 pounds of tractive force and weighed 380,000 pounds. Their grate area was slightly more than 76 square feet, and they had 5125 square feet of evaporative heating surface and 1233 square feet of superheater surface. Beginning in 1936 the Frisco began to build new 4-8-2s using parts from most of these these 2-10-2s, with No. 20 reportedly being the parts source for 4-8-2 No. 4408. The image, by an unknown photographer, comes to our Random Steam Collection courtesy of Donna Harrison-Rodeghiero.