A Model Number 8-1/2 A.C. Gilbert "ERECTOR SET" with 200 Original Parts.
Including a working ERECTOR Motor, Floor Plates, Wheels, Sprockets, Gears, Pullies, Girders, Axles, Tools, a Silo/Boiler and an Electro Magnet (not tested as was unsure of voltage required?)
Also comes with the original 64 Page ERECTOR "How to make 'em" Manual all in the original 20" x 12" x 3" Red Metal Box.