This is a set of 3 American Flyer S Gauge diesel locomotives which would be a great addition to any model railroad enthusiast's collection. It features a light function and sound function, making it a unique and fun piece to play with. The locomotive was manufactured in 1959 and I am not sure if it is in working order. The Union Pacific Railroad corporate road name adds to the locomotive's value and it is sure to impress any train enthusiast. The second locomotive is American Flyer S Gauge 24830 Union Pacific Columbia River. The third locomotive is American Flyer S Gauge 24837 Union Pacific Star Dust. These locomotive are perfect for those who enjoy model railroading and collecting.