American Flyer Remote Control Whistle 577 Operating Instructions
These are the installation instructions furnished by the A. C. Gilbert Co. to customers to aid them in the installation and operation of American Flyer equipment. Specifically, this bulletin is for the American Flyer Accessory 577 Whistle Installation instructions.
Gilbert American Flyer Number 577 Whistling Billboard
The 577 whistle was produced in 1947 through 1950 and had a green metal base. The whistle was different from later years as Gilbert began to move towards plastic materials.