Leather armchair attributed to Richard Sapper

Dimensions: h109 X l67 X d60. Color: black. Materials: leather. Style: design. Armchair attributed to knoll, richard sapper 1980. Armchair designed by richard sapper for knoll - 1980. Executive model. Black leather seat and back. Double height backrest (62cm) wide adjustable seat (45cm to 60cm) and swivel. The tilt system does not work. Black lacquered steel base with 5 spokes on castors. Note: a seam on the seat has come loose as well as some minor age-related wear on the front left edge, not very visible. dimensions: l 67cm X h 109cm X d 60cm.