Vintage tulip chair by Eero Saarinen for Knoll

Tulip chair by designer eero saarinen for knoll, reference chair of design of the 60s and 70s. Cast aluminum foot, molded resin shell, orange imitation leather seat, held by 4 scratch. Non-swivel model this chair comes out of an old carpentry workshop. It is cleaned, not restored and in its juice of find. Has traces of friction (see photos) no cracks and good stability. The signature is not very visible on the photo but present under the foot. Seat height: 46 cm.