This detailed Atlas Master Gold N Scale Alco FB1 locomotive is based on cab booster units introduced in the late 1940s, under a partnership from the American Locomotive Company (Alco) and General Electric. The FA series was Alco's foray into the cab unit market. The F designation meant their design and usage would be best suited for "freight," although the FA and matching FB1 "Booster" unit could be seen in service almost anywhere. Over 600, 400 of them being FAs, were built from 1946 to 1956. Many of these saw service for secondary owners as late as the 1970s. The FA1 and FB1 will capture the rugged look on a road freight moving tonnage. This N Scale Alco FB1 replica comes equipped with a dual-mode ESU LokSound Select sound and DCC decoder with Full Throttle effects for operation on DCC and DC layouts, and features a motor with dual flywheels, directional LED lighting, accurate decoration and AccuMate(R) magnetic knuckle couplers.