Sold at Auction: Norman Foster, NORMAN FOSTER (UK, 1935) for KNOLL. Two-seater sofa model 501 "Congress". Steel legs and black leather upholstery. With maker's label, Walter Knoll. With minor wear and tear.
Parker Knoll Sofas, Chairs and Recliners | Ward Brothers Furniture
Sofa by Florence Knoll for Knoll International, 1960s for sale at Pamono