Artwork, 1961 “Empty” room dedicated to the “Immaterial Pictorial Sensibility”, Museum Haus Lange, Krefeld
Photo, 1957 View of Yves Klein's "Aerostatic Sculpture" during his exhibition "Yves Klein: Propositions Monochromes", Galerie Iris Clert
Photo, 1957 Yves Klein in front of his Sponge Sculpture at the exhibition "Monochrome Propositions of Yves Klein" Gallery One, London