The genuine Verner Panton Fun Lights are made in Denmark by the company Verpan. They consist of Seashell discs, a chrome plated metal frame and stainless steel rings. The authentic shells used for these lamps come from the Philippines, specifically from the province of Capiz. The shells (Placuna placenta) have been used for thousands of years as a glass substitute because of their durability and translucence. The windowpane oyster used for these lamps are often named “mother of pearl”, but that’s another shell. Replica lights may be made with cheaper materials and inferior construction, so it is important to buy from a reputable source like Olson and Baker if you want to ensure you're getting an authentic original Fun Light by Verner Panton.