Donald Chadwick & William Stump for Herman Miller: Multi-adjustable office chair, model 'Aeron'

Donald Chadwick & William Stump. Multi-adjustable office chair, model 'Aeron' Donald Chadwick & William Stump: Multi-adjustable office chair, model 'Aeron', in the color gray, made of lacquered aluminum and plastic. Designed in 1992. Manufactured by Herman Miller with label from here. size B Shows signs of wear, newer model with adjustable posture fit, however missing handle for this.