Swivel vintage office chair, adjustable height

Office chair late 70s, early 80s. Foot 5 arms in silver metal with 4 castors in black plastic. Seat and back in tweed predominantly chocolate and cream, clean. Adjustable in height, seat height min 41 cm - max 54 cm. some defects to note visible on the photos: traces on the feet and medium finish on the seat (poorly stapled tweed) The cylinder mechanism works perfectly. Strong and stable. A vintage piece at a low price.