USA, 1980 Herman Miller Eames aluminum group management chair in original royal blue hopsack. Comfortable task chair, adjustable tilt, handsome design. Stamped April 9, 1980. This particular chair previously lived in the George Nelson-designed Kirkpatrick House in Kalamazoo, Michigan, which was recently purchased by Jack White of The White Stripes. Charles and Ray Eames first began designing their Aluminum Group suite in 1958 as a special project for Eero Saarinen and Alexander Girard. DIMENSIONS: 22.75" W x 24" D x 33.75" H; Seat Height, 18.5"