Photo, 1959 Yves Klein at the opening of his exhibition "Bas-reliefs in a sponge forest", Galerie Iris Clert
Photo, ca. 1960 Yves Klein and Rotraut with Ci-gît l'Espace [Here Lies Space] (RP 3) and the Sponge Relief (RE 20)
Photo, 1960 Yves Klein, Rotraut, Jean Tinguely and Eva Aeppli at the opening of the exhibition "Yves le Monochrome" at the Galerie Rive Droite
Photo, 1959 Rotraut and Elena Palumbo at the opening of the exhibition "Bas-reliefs in a sponge forest", Galerie Iris Clert
Photo, 1960 Rotraut and Marie Raymond in front of Anthropometry (ANT 76) during the exhibition "Yves Klein le Monochrome" at the Galerie Rive Droite
Photo, 1959 International collaboration between artists and architects in the realisation of the new Gelsenkirchen Opera House