Rythme coloré . 1958. Gouache. Lower right signed, dated and inscribed "No 662". Lower left once more signed. On wove paper, laid on thin cardboard. 17.7 x 15.4 cm (6.9 x 6 in). Sheet: 27,7 x 23,8 cm (10,9 x 9,3 in). [AW]. • Sonia Delaunay-Terk"s characteristic rhythmic conception of color and form. • She is considered a pioneer of abstract painting, especially of geometric abstraction. • Particularly diverse oeuvre: She designed theater props and costumes for Igor Stravinski and made fabric designs for Jean Poiret. • The artist"s works are in renowned international collections like Tate Modern, London, the Center Georges Pompidou, Paris, and the Museum of Modern Art, New York . Accompanied by a certificate of authenticity (in copy) issued by Jean-Louis Delaunay, Barcelona, the artist"s grandaughter, from March 26, 1992. The work is registered in the archive with the number 662.