Vintage Electric Motor Skull And Bones Warning Sign For Sale

Found this enameled electric motor warning plate clean out my dad’s estate. It measures 3” x almost 5”. It is curved slightly that’s why I think it was mounted on a motor. I’ve seen the ones mounted on doors and walls but this is the first I’ve seen that would have been mounted on the motor. It’s old and my guess is it came out of one of the steel mills in NW Indiana or south side of Chicago. Dad and myself both worked at Inland Steel so it might have come from there . Huge number of Europeans worked at Inland Steel in the early 1900’s . Nice warning plate . I’ll ship free to USA locations.