Photo, 1959 International collaboration between artists and architects in the realisation of the new Gelsenkirchen Opera House
Photo, 1959 Inauguration of the Gelsenkirchen Opera Theater in the presence of Jean Tinguely and Yves Klein
Photo, 1960 Yves Klein, Léonor Fini, Rotraut and Victor Brauner at the opening of the "Yves Klein le Monochrome" exhibition at the Galerie Rive Droite
Photo, 1961 Paul Wember, Rotraut Uecker and Yves Klein in front of "Column of Fire" during the exhibition "Yves Klein Monochrome und Feuer" at the Museum Haus Lange