Seller: tisburycottage (11) 100%, Location: Brooklyn, New York, Ships to: US, Item: 291959947448 Vintage pair of Arteluce "Clissi" black & white wall sconces. I purchased these sconces in the 1980's from Atelier International Showroom in NYC. Each sconce takes two 40 watt bulbs. The white shades are made from plastic and have ridges going all the way around. The front piece attaches to the inside part/back with screws - it is very easy to assemble. Dimensions: backplate measures 5" wide in diameter. Overall measurement of white shade is 16" long x 8.5" wide x 6" deep. Feel free to message me with any questions - thanks for looking!