FoMoCo Original Generator. I think it might be 1964 1/2 Mustang, but not sure, 'til I get more specs. Turns free, might be original paint, all tabs intact, photos show condition, i wirewheeled it to be able to read numbers. marking on 1 mounting ear is: GL 17 marking on 2nd mounting ear is: FAS 10139B pulley stamped: 8HA-A3, F.M. Co., large capital N w/ "s" and "c" nestled inside it. More photos at: http://s442.photobucket.com/user/sunnyorm/library/Gastank Mustang generator?sort=3&page=1 Make Offer.