Set of nine signed silkscreen prints in blue tones, assembled in one plate and produced in 1975 by : - Bernard JARDEL (1932-1984) ; - Jean-Pierre VASARELY (1934-2002) known as YVARAL ; - Maxime DEFERT (1944-2020) ; - Geneviève CLAISSE (1935-2018) ; - Philippe MORISSON (1924-1994) ; - TUAN PHAM NGOC (born 1929) ; - Maryse ELOY (born 1930) ; - Enrique CAREAGA (1944-2014) . -Jean-Claude MARQUETTE (born 1946). Note: this collective work revolves around a shared passion for chromatic experimentation and geometric abstraction. These artists, though each with their own style and sensibility, share a common quest for aesthetic unity.