Lionel Train 151 Automatic Semaphore. Black; gray; yellow; red; green. Metal; wire; plastic. The operating plastic blade is painted yellow with red and green translucent plastic inserts. The ladder is red and the base is black. It has an unpainted aluminum pole. Ith bottom is embossed, Lionel Corporation, New York, Made in the U. S. of America. Part No. 153-3.