Photo, 1957 View of Yves Klein's "Aerostatic Sculpture" during his exhibition "Yves Klein: Propositions Monochromes", Galerie Iris Clert
Photo, january 1961 Yves Klein with the work Ci-gît l'Espace [Here Lies Space] (RP 3) during the exhibition “Monochrome und Feuer”, Museum Haus Lange
Photo, janvier 1961 Yves Klein next to a Sponge Relief (RE 10) lors de son exposition "Yves Klein Monochrome und Feuer", Museum Haus Lange