original early 1920's american industrial curved edge porcelain enameled die cut steel "positively no smoking" bathroom sanitary sign or plaque salvaged from a chicago factory. the elongated oval-shaped single-sided sign features vibrantly colored ruby red lettering against an all-white background. the steel grommets remain in excellent condition. the single-sided sign was manufactured by the j. h. pollard co., brooklyn, ny. measures 10 x 2 1/2 inches.