Photo, 1959 Yves Klein at the opening of his exhibition "Bas-reliefs in a sponge forest", Galerie Iris Clert
Photo, 1968 Rotraut in front of the Relief Portrait of Arman (PR 1) during the exhibition "Yves Klein", Louisiana Museum
Photo, 1959 Yves Klein, Iris Clert and Rotraut at the opening of the exhibition "Bas-reliefs in a sponge forest", Galerie Iris Clert
Exhibition, 15 Jun 1959 - 30 Jun 1959 Bas-reliefs dans une forêt d'éponges Galerie Iris Clert, Paris, France
Film, 1959 Yves Klein's exhibition : Bas-reliefs dans une forêt d'éponges [Bas-reliefs in a forest of sponges], galerie Iris Clert, Paris, France