The Model 145 was designed in 1954 by Kurt Nordstrom for Knoll International. The seat and backrest are made of bent plywood; the frame is made of black lacquered metal. The chairs show signs of wear consistent with their age and have developed a beautiful patina. The backrest and seat have been lacquered black. Therefore, the chairs are not in their original condition. 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