Vintage Charles Pfister Knoll Studio Upholstered Sofas, Two Available Offered for sale individually are two upholstered three-seat sofas designed by Charles Pfister for Knoll Studio. These sofas were recently reupholstered in a Knoll linen-blend tweed fabric. The sofas have three loose seat and back cushions and are incredibly well-made and comfortable. They are priced individually and two are available. As the sofas have been reupholstered they no longer retain the Knoll labels. They are guaranteed to be original. Dimensions: Height: 26 in (66.04 cm) Width: 87.5 in (222.25 cm) Depth: 33 in (83.82 cm) Seat Height: 16 in (40.64 cm)