This is the service bulletin furnished by the A. C. Gilbert Co. to authorized service stations to aid them in the service and repair of American Flyer equipment. Specifically, this bulletin is for the American Flyer Accessory 600 Crossing Gate with Bell
This crossing gate was produced from 1954 to 1956. The next Gilbert American Flyer crossing gate in the series is the No. 600. It uses the same base as the 592A but adds a bell to the action. The bell is hidden in the hut.