Wabash Railway 0-6-0 No. 516 belonged to a group constructed in 1903-1904 by Baldwin Locomotive Works. These class B-6 switchers were unsuperheated and retained their Stephenson valve gears throughout their careers, the last examples being scrapped in 1947. They weighed a mere 130,000 pounds and mustered 27,405 pounds of tractive effort. With slide valves and cylinders of 19x28 inches, they had a 58-inch driver diameter and sustained 185 p.s.i. of boiler pressure. Their grate area measured 29 square feet, and their evaporative heating surface 1800 square feet. Nevertheless, even with these modest dimensions they must have been useful in switching industrialized locations in the territory served by the Wabash. Wayne Koch provided the photo, but the photographer, date and location are unspecified.