Photo, 1959 Yves Klein, Iris Clert and Rotraut at the opening of the exhibition "Bas-reliefs in a sponge forest", Galerie Iris Clert
Photo, 1959 Inauguration of the Gelsenkirchen Opera Theater in the presence of Jean Tinguely and Yves Klein
Exhibition, 15 Jun 1959 - 30 Jun 1959 Bas-reliefs dans une forêt d'éponges Galerie Iris Clert, Paris, France