DANGER DO NOT OPEN DOOR FAN RUNNING Old Porcelain Sign Industrial Prod Co PHILA
DO NOT OPEN DOOR. WHEN FAN IS RUNNING. Original Old Industrial Safety Advertising Sign. Makers marked lower right edge. INDUSTRIAL PRODUCTS CO PHILADELPHIA. Red white black porcelain. Measures approximately 10″ by 14″. Please view all pictures for more information. Exhibits wear and tear with age and use. Areas of damage stains worn aged patina. Check …