Beautiful RAR "Rocking Armchair Rod" Designed by Charles & Ray Eames 3rd generation Zenith Plastics edition for Herman Miller Elephant Grey color Original piece produced in 1957 The production date of September 1957 is stamped under the seat. The Zenith Plastics "Z" surrounded by three triangular dots is molded in relief under the seat. Very high-density fiberglass. The chair features a rope edge without hemp cord. The black metal rod base with walnut glides is a recent edition faithful to the originals. Dimensions: Width 63cm Depth 57cm Height 69cm Seat height 40cm Weight 5kg This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution