This DS-2030 lounge chair was designed by Hans Eichenberger for De Sede in the 1970s. It has a chromed metal frame and is covered with black leather. The chair is in a very good original condition. The De Sede brand name is embossed into the leather on the underside of the seat and is also woven into the beige fabric cover. The product number is located on a small fabric label - see detail pictures. This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution