Knoll armchair by Bill Stephens - 1970s

I am selling 4 armchairs designed by Bill Stephens for the famous Knoll brand in the 70s. Information about the armchairs: • Designer: Bill Stephens • Brand: Knoll • Model: 1305UO • Style: Mid-century Modern • Seat dimensions: length 41 cm; width 47 cm • Condition: The armchairs show some wear with scratches and other signs of use. The foam padding and fabric are tired (see photos) • The armchairs are comfortable and sturdy. They can be used as is for an authentic vintage look or restored to their original shine