Lionel Train Engine. Black; silver; white. Iron; aluminum; wire. The engine is marked in white beneath the cab window, 726 with RR beneath the number. It is marked beneath the engine, "Made in the U.S.A. The Lionel Corporation, New York, N. Y. It has and on/off "smoke" switch on top. The fire-box door opens for bulb replacement. The upper "lights" are green. Originial box is marked, 726-86, 1952, St. Joe Kraft Hackensack, N. J.