original c. 1950's antique american industrial single-sided stamped steel "do not burn" chicago city park streets and sanitation informational sign. the multiple holes located along the central region were used to mount the sign against a freestanding sign post. the exterior or outdoor sign contains a nicely worn and weathered surface patina. the bold black lettering remains in good shape considering age and prolonged exposure to the elements. measures 24 x 15 inches.