As a relatively early convert to diesel power the Seaboard Air Line is not remarkable for its steam locomotives, with the exception of its high-speed 2-6-6-4 simple articulateds which were sold to the Baltimore & Ohio in 1947. Mainstay of the Seaboard's freight operations was a fleet of 2-8-2s, notably the Q-3 class of 117 members based on the light USRA design and delivered by ALCo and Baldwin between 1923 and 1926. No. 435, seen here, belonged to the final Baldwin group. These locomotives, formidable in appearance due to their smokebox-mounted air pumps, weighed around 300,000 pounds. They had the typical Mikado 63-inch drivers, cylinders of 26x30 inches, and a boiler pressure of 200 p.s.i. A booster added almost 10,500 pounds to their tractive force of 54,724 pounds. With 63 square feet of grate area, they had an evaporative heating surface of 3786 square feet and a superheating surface of 882 square feet. By 1955 all had been consigned to the scrapyard, hence color views of them are rare. William D. Volkmer captured this transparency of No. 435 awaiting its fate at Atlanta on a cloudy February 27, 1955.