nicely worn c. 1930's american vintage industrial painted galvanized sheet steel cook county hospital power plant "hot" steam pipe danger sign

unique early 1930's vintage american industrial single-sided cautionary or danger sign salvaged from the old cook county hospital power plant building. the sign is comprised of galvanized sheet steel with a nicely worn and weathered paint finish featuring bold red stenciled letters against an off-white background. allover surface crazing evident. a number of these signs were hung around steam pipes throughout the boiler room. only one available.