Steelcase strafor workshop chair

Swivel architect's office chair from the steelcase strafor brand in the late 1960s. Model 420/710 become untraceable. Metal structure (inox) and wood, swivelling, very sandy and solid with its stainless steel base into a star, transformable into a stool depending on the height. Original fabric: 9/10. Stainless steel: 9/10 (60 cm in diameter with feet) Seated (45 x45 cm) adjustable in height of 48 cm (dining room) to 68 cm high (counter or bar) redone with a new foam. Height adjustable folder (up to 10 cm) Inflatable piston in excellent condition. Free shipping on lyon / to negotiate if further.