This Lionel 6-28539 B&O ALCO S-2 Diesel Switcher is a ready-to-go, pre-built model made in 2003 (2003 Volume 2 Catalog). This blue replica of the S-2 Switcher is a 1:48 scale diesel locomotive that features a light function and is part of the Baltimore & Ohio corporate road name. With its plastic construction and three-rail system, this model is perfect for transportation-themed model railroads and is ideal for hobbyists aged 17 years and up. Made by Lionel in the United States, this mint-in-original-box collectible is a timeless piece for any train enthusiast's collection. The seal on the original shipping box has never been broken therefor it has never been run nor tested.These early 2000 Command equipped engines are every bit as nice as the current production but are much less expensive. They however do not support all of the Legacy and Bluetooth control.