Photo, 1961 Yves Klein behind the "Wall of Fire" during the exhibition "Yves Klein Monochrome und Feuer" at the Museum Haus Lange
Document, 1957 Invitation card for the double exhibition "Yves Klein: Propositions monochromes" at the Iris Clert and Colette Allendy Galleries
Photo, 1957 View of Yves Klein's "Aerostatic Sculpture" during his exhibition "Yves Klein: Propositions Monochromes", Galerie Iris Clert