Exhibition, 28 Apr 1958 - 12 May 1958 La spécialisation de la sensibilité à l’état matière première en sensibilité picturale stabilisée, "Le Vide" [The Specialization of Sensibility in the Raw Material State into Stabilized Pictorial Sensibility, "The Void"] Galerie Iris Clert, Paris, France
Exhibition, 15 Jun 1959 - 30 Jun 1959 Bas-reliefs dans une forêt d'éponges Galerie Iris Clert, Paris, France
Exhibition, 31 Mar 2016 - 31 Jan 2017 Pierre Descargues et Yves Klein - 160gr d'or Hiekka Art Museum, Tampere, Finland
Photo, 1957 Yves Klein in front of his Sponge Sculpture at the exhibition "Monochrome Propositions of Yves Klein" Gallery One, London
Photo, 1959 Yves Klein, Iris Clert and Rotraut at the opening of the exhibition "Bas-reliefs in a sponge forest", Galerie Iris Clert