Vintage Orig. Humble Oil & Refining Co Danger Low Pressure Line Porcelain Sign For Sale

The product is a vintage porcelain sign from the Humble Oil & Refining Company, featuring the warning "Danger Low Pressure Water Line." This collectible advertising sign is original, measures 15” X 8”, and hails from the United States, reflecting the theme of gas and oil. The sign is white in color with red letters and serves as a piece of memorabilia from the gasoline industry. Perfect for collectors of vintage signs or fans of the history of gas and oil companies.