original and well-maintained c. 1940's american vintage industrial single-sided die cut steel "sliding doors" danger sign designed and fabricated by the enameled sign company, chicago, il. the heavy gauge steel sign has a largely intact baked enameled finish with surface wear evident. the chicago furniture factory sign has multiple grommets along the edges for mounting purposes. one of the earliest and perhaps most recognizable (even to this day) danger signs was designed with the word "danger" in white letters againt a cardinal-red oval, surrounded by a jet black background, which was copyrighted by james wesley stonehouse in 1912. stonehouse went on to form the stonehouse steel sign company that specialized in accident prevent signage used throughout factories, commercial facilities and the like. their facility, (based in denver, co.) still produces most of the same signage still seen today. measures approximately 20 x 14 inches.