Lionel mx-439

MARX AUTO SEMAPHORE

 

Built 1949, 1952-58. Came in a couple of variations. The 1949 version had a stamped metal round base. The other either have a rectangular die cast or plastic base. The semaphore arm is operated by a solenoid. A bulb behind the arm illuminates the lens - red, yellow or green - that's in front of it.

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