Santa Fe 4-8-4 No. 2929 poses for an unidentified lensman at Los Angeles in August 1949, in an image that came from a Flickr site that was discontinued in 2008. These massive locomotives had a grate area totaling 108 square feet, plus 5312 square feet of evaporative heating surface and 2366 square feet of superheating surface. They were equipped with thermic siphons and a combustion chamber; for other dimensions refer to the page for No. 2910.