original c. 1950's american industrial vintage die cut steel "clean up and keep clean" chicago foundry sign designed and fabricated by the ready-made sign company, new york city, ny. the weathered and worn foundry locker room sign was originally mounted flush against a tiled wall near the showers. the sign is comprised of steel with a multi-colored baked on enameled finish. the sign contains four diminutive screw holes in each of the corners for mounting flush against the wall. only one available. measures 6 x 20 inches.