This is an authentic fire safety warning sign from Communist-era Bulgaria displaying the message: "Пожароопасен район!" (pojaroopasen raion - Fire Danger Zone), used to mark zones with a high risk of fire. It likely comes from a forested, industrial, or fuel storage area, where strict fire prevention protocols were enforced by the state. The large red font and all-caps design weren’t just aesthetic. They were part of a visual language of urgency, meant to catch the eye of passersby—especially those operating heavy machinery or vehicles in high-risk zones. The sign’s durable enamel finish made it suitable for long-term outdoor exposure. These signs were not mass-produced for public sale, they were commissioned by state ministries for use in official industrial installations, making them rare survivors of a bygone era.