The "Paperdiamond Pippa" easy chair was designed and produced by Zurich designer Robert A. Wettstein in 2011 to mark the 150th anniversary of Rudolf Steiner's birth. It is made out of EPS20 and paper. The armchair is a unique piece. It is signed and comes with a certificate of authenticity. 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