Article, 1961, Roland F. Pease Jr. Testimonial of Roland F. Pease Jr. on the blue monochromes seen at the Leo Castelli exhibition, 1961
Document, 1957 Invitation card for the double exhibition "Yves Klein: Propositions monochromes" at the Iris Clert and Colette Allendy Galleries
Exhibition, 10 May 1957 - 25 May 1957 Yves Klein : Propositions monochromes Galerie Iris Clert, Paris, France
Photo, 15 octobre 1955 Yehuda Neiman and Manuel Alter at the opening of the exhibition "Yves: paintings", Lacoste Publishing - Club des Solitaires
Photo, October 15 1955 Bernadette Allain at the opening of the exhibition "Yves: paintings", Lacoste Publishing - Club des Solitaires
Photo, 1957 Yves Klein at the opening of his exhibition "Yves Propositions monochromes", Galerie Schmela, Düsseldorf