An unidentified photographer captured Boston & Maine "Lima" 2-8-4 No. 4021 on May 11, 1935, in this image from a Flickr site that was dropped in 2008. The B&M's T-1a class had a grate area of 100 square feet, an evaporative heating surface of 5131 square feet, and a superheating surface of 2135 square feet. For other dimensions consult the commentary for No. 4016. No. 4021 was not included in the group sold to the Santa Fe and the Southern Pacific, and was scrapped in 1951. The same image appears in the ABPR Archive, where the location is given as Westboro, New Hampshire, which was at the end of the line to White River Junction, Vermont.