The MARX Prewar Union Pacific M10005 Streamline Train Set includes an engine and 2 passenger cars, all made of brass and tin. Manufactured in 1940, this vintage set features an analog control system and a scale of S. The locomotive is designed as a ballast tamper and bears the Union Pacific Railroad corporate roadname. This classic toy train set is a piece of American history and is perfect for collectors or enthusiasts of model railroads and trains.