| Here is a postal card entitled "Diesel Helpers." No Postmark. Caption On Reverse: "Diesel locomotives helping a westbound freight train around the world famous Horseshoe Curve, located about 5 miles west of Altoona, Pa. Photo by Sheldon L. Burns." The numbers of these ALCo AS-18AM locomotives and the N-8 cabin car, as well as the exact date, are not recorded. |