The C&O's 4-6-4s of the L-2a class had an evaporative heating surface totaling 4178 square feet, a superheating surface of 1785 square feet, and a grate area of 90 square feet. This image of No. 311 was captured at Cincinnati at an unknown date, photographer equally unidentified. It was included in the collection of Harold Vollrath and also appears in the the ABPR Archive, but this copy came from a Flickr site taken offline in 2008.