Rotating office chair Stoll Switzerland 1960s

Rotating office chair with "federdreh" system from stoll (switzerland), adjustable in height. Model no. 5505 which had various forms of base and metal barrel over the 50s to 70s. Curved wooden back, massive saddle-shaped seat - 41 X 41 cm. Seat height 44 to 53 cm approx. Wheelbase 40 cm. Very good vintage condition.|// delivery throughout france €29 (eu on request), professional invoice. My other office, bistro & bentwood lots in store.