William S. Kuba of Cedar Rapids, Iowa snapped this three-quarters shot of C&O 2-10-4 No. 3013 at Columbus, Ohio on May 19, 1940. Bud Laws uploaded the same image to the Railfan.net ABPR Archive in 2003, but this copy came from a Flickr site that went offline in 2008. With its boiler stretching to 108 inches at its greatest diameter, and with a locomotive weight of 566,000 pounds, the C&O T-1 was the largest and most powerful two-cylinder locomotive in the world at the time of its introduction. These engines had 29x34-inch cylinders and carried 275 p.s.i. of boiler pressure, and exerted 93,350 pounds of tractive effort (108,625 pounds with booster cut in). An immense grate area of 108 square feet, together with an astounding 6635 square feet of evaporative heating surface and 3030 square feet of superheating surface, permitted these locomotives to steam freely at speed with heavy trains — the C&O being an important coal hauler.