Produced by the American Locomotive Company (ALCO) during the 1950?s, the RS-4/5 was used in local freight train and commuter passenger service throughout North America.

Features Include:
- Golden-white LEDs
- Directional lighting
- Separately-applied painted handrails (where appropriate)
- Blackened metal wheels
- Scale Speed? motor
- Factory-installed AccuMate? magnetic knuckle couplers
- Accurate painting and printing