hard to find and highly desirable c. 1960's graphic factory accident safety sign in the form of a wall-mount die cut cardboard "blindness is never in" machine shop eye goggle sign fabricated by or for the sellstrom mfg. co., palatine, ill., a service of the safety division, sellstrom safeguard. these often comical graphic safety signs are highly sought after. the late 1960's sign was salvaged from a chicago machine shop. the die cut safety sign contains typical surface wear, along with stains, etc., from prolonged exposure to the workshop environment. two similar "eye safety" signs available.