Artwork, 1961 “Empty” room dedicated to the “Immaterial Pictorial Sensibility”, Museum Haus Lange, Krefeld
Photo, 1961 Yves Klein surrounded by his works at the exhibition "Yves Klein Monochrome und Feuer" at the Museum Haus Lange
Photo, 1961 View of the exhibition “Monochrome und Feuer” (MG 17, S 33, S 34, S 35), Museum Haus Lange