The history of Riddle lighting is primarily associated with the Edward N. Riddle Company, a decorative lighting fixture company based in Toledo, Ohio, which celebrated its 40th anniversary in 1932. This company produced decorative lighting fitments, and its history dates back to at least 1892, with its catalogs being published in the 1930s. It's important to distinguish this company from other businesses with the "Riddle" name, such as Riddle's Jewelry or other manufacturing companies that may have existed.