That generator was original equipment on Ford V8 1934 through to 1937 and some 38. Radiator fan mounted on the gen pulley using those 4 bolts. 1932 had a different front threaded mount and 33 had no cooling fan blades cast in the back of the pulley and no cooling openings in the front and rear gen end housings. 1934 on had cooling openings and blades on fan such as on your sample. Original cutout on top can add some value. Pay as low as you can get it for but maybe $40.00 or so. Regards, Kevin.