Warning Industrial Plate, Danger of Death, Factory, Loft, Vintage

Here is a warning plate as found in the factories! In fact, it seems to have come from a factory that has been abandoned for about 10 weeks of year in the north of france! In stamped aluminum, with embossed lettering, and black, In good general condition, with some traces of his past to perfect his charm! It has 4 holes for fasteners (not included). 20 cm X 25 cm.