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, janvier 1961 Yves Klein next to a Sponge Relief (RE 10) lors de son exposition "Yves Klein Monochrome und Feuer", Museum Haus Lange
Photo, 1959 International collaboration between artists and architects in the realisation of the new Gelsenkirchen Opera House