Article, 1961, Roland F. Pease Jr. Testimonial of Roland F. Pease Jr. on the blue monochromes seen at the Leo Castelli exhibition, 1961
Artwork, 1961 “Empty” room dedicated to the “Immaterial Pictorial Sensibility”, Museum Haus Lange, Krefeld
Photo, 1961 "Fountain of Fire" at the exhibition "Yves Klein Monochrome und Feuer", Museum Haus Lange
Artwork, 1961 "Wall of Fire" and "Column of Fire" during the exhibition "Yves Klein Monochrome und Feuer", Museum Haus Lange, Krefeld, Germany
Photo, 1961 "Fountain of Fire" during the exhibition "Yves Klein Monochrome und Feuer", Museum Haus Lange