Pair of vintage Randal Buck for Steelcase Strafor swivel chairs

Set of two swivel chairs model 451 by randall buck for steelcase strafor 70s in the style of charles pollock. The legs are in chromed metal with 4 branches, plastic shell covered, padded seat and fabric in beige and yellow wool / tweed, they are in very good condition, the label missing. The chairs are very comfortable, stable and solid. Delivery possible in the surroundings of belfort and paris.