Photo, 1961 Yves Klein and his sculpture Piège bleu pour lignes [Blue Trap for Lines] (S 14) during the exhibition "Yves Klein Monochrome und Feuer"
Photo, janvier 1961 Yves Klein in front of the sculpture "Pluie Bleue [Blue Rain]" (S 36) during the exhibition "Yves Klein Monochrome und Feuer", Museum Haus Lange
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, 1961 View of the exhibition “Monochrome und Feuer” (MG 17, S 33, S 34, S 35), Museum Haus Lange
Article, 1961, Roland F. Pease Jr. Testimonial of Roland F. Pease Jr. on the blue monochromes seen at the Leo Castelli exhibition, 1961
Photo, 1959 International collaboration between artists and architects in the realisation of the new Gelsenkirchen Opera House