Exhibition, 21 Feb 1956 - 7 Mar 1956 Yves : Propositions monochromes Galerie Colette Allendy, Paris, France
Exhibition, 4 Aug 1956 - 31 Aug 1956 Festival de l'art d'avant-garde Cité Radieuse de Marseille, France, Marseille, France
Exhibition, 2 Jan 1957 - 12 Jan 1957 Yves Klein : Proposte monocrome, epoca blu Galleria Apollinaire, Milan, Italy
Exhibition, 12 Apr 1957 - 8 May 1957 "Micro-Salon d'avril", Galerie Iris Clert, 1957 Galerie Iris Clert, Paris, France
Exhibition, 10 May 1957 - 25 May 1957 Yves Klein : Propositions monochromes Galerie Iris Clert, Paris, France
Exhibition, 14 May 1957 - 23 May 1957 Yves Klein : Propositions monochromes Galerie Colette Allendy, Paris, France
Exhibition, 31 May 1957 - 23 Jun 1957 Yves Propositions monochromes Galerie Schmela, Düsseldorf, Germany
Exhibition, 24 Jun 1957 - 13 Jul 1957 Monochrome Propositions of Yves Klein Gallery One, London, United Kingdom, London, England
Article, 1961, Roland F. Pease Jr. Testimonial of Roland F. Pease Jr. on the blue monochromes seen at the Leo Castelli exhibition, 1961