The Key Samhongsa HO Brass ATSF 3450 4-6-4 Hudson Steam Loco & Tender is a vintage model replica of an ATSF 3450 Class Hudson steam locomotive and tender. This unpainted brass locomotive is ready to go and features a 4-6-4 wheel configuration, 1:87 scale, and analog control system. Manufactured in 1978 by Key Model Imports in Japan, this steam locomotive is perfect for model railroad enthusiasts aged 17 years and up who enjoy a piece of transportation history from the USRA corporate roadname era.