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.
The Chesapeake & Ohio's T-1 2-10-4 was so successful that it spawned a legacy of steam designs. The Van Sweringen brothers' The Advisory Mechanical Committee produced a scaled-down version for the Nickel Plate's first class S 2-8-4s of 1934; this basic "Van Sweringen Berkshire" design was replicated in locomotives erected for five other railroads, including the C&O itself, the last examples being outshopped by Lima in 1949 as the Nickel Plate's class S-3. Meanwhile the C&O's "Allegheny" 2-6-6-6, built by Lima beginning in 1941, is said to be a lengthening of the T-1 design, articulated so that it could negotiate the curves of the railroad's hilly territory.