Welcome to The Salvage Dept, specialists in 20th century design, based in Sevenoaks, Kent. A striking set of three vintage Polish enamel/porcelain warning signs – original industrial pieces dating from the communist-era (PRL period), used in factories, power stations or electrical installations. The Signs: x2 amber/orange enamel signs – reading Nie wlaczac! Do Not Switch On! With red lightning bolt hazard symbol. Bold black typography on vivid mustard-yellow ground. X1 white enamel sign – reading Pod napieciem! Under Voltage / Live Electricity! Again with red lightning bolt. White ground with age-appropriate patina and minor chipping. All three feature the classic red downward lightning bolt symbol – the universal electrical hazard warning – and corner mounting holes for wall/panel fixing. Condition: Good vintage condition, age-related wear, minor chipping and surface marks consistent with authentic use. These are genuinely atmospheric pieces – highly sought after by collectors of industrial signage, Eastern European design, and mid-century memorabilia. The bold graphic design makes them equally popular as wall art in loft, industrial, or retro interiors. Reused and recycled packaging is used as much as possible. Check out our other listings and give us a follow as more to come!