Richard Sapper armchair edited by Knoll

Office chair designed by richard sapper for knoll. Armchairs in imitation black leather of very good quality with low backrest with shoulders. "sapper collection". Base with reception special swivel tablets to slide on carpets and carpets. The chair swivels and has a force feedback. Drawing from 1979. Edition knoll international circa 1980. In very good condition. Size: Height 86 cm width 62 cm depth 60 cm. Seat height 49 cm.