The primary use of the 4-4-2 or Atlantic type was to haul lighter and faster passenger trains. Most railroads quickly retired their Atlantics in favor of Pacifics, once these became available for shorter trains through the introduction of larger mainline power or the reduction of passenger service. The Wabash Railroad, however, was among the few lines that kept Atlantics in service into the 1940s and beyond. No. 602, shown here courtesy of Tom Rock of T.D.R. Productions, belonged to class E-4, erected by Baldwin Locomotive Works in 1904. Photographer, date and location are unknown, but the photo was probably taken in Detroit. These high-stepping engines featured 80-inch-diameter drivers. They had 21x28-inch cylinders and 210 pounds of boiler pressure, and exerted 27,551 pounds of tractive force. Their modest proportions gave them only 45 square feet of grate area. Originally unsuperheated, a rebuilding gave them 2365 square feet of evaporative heating surface and 510 square feet of superheater surface. Sporting an old style inboard-journal trailing truck, No. 602 has been upgraded with a modern headlight and a cast steel drop-coupler pilot. Nevertheless, all members of the E-4 class were retired by 1949.