Sonia Delaunay (Odessa 1885 - Paris 1979) "Rythme coloré" Paris 1936 gouache on paper 29.5x24.6 cm Initialed, dated 19-1-36 and inscribed 1058 lower right Provenance Brito Collection, Lisbon Blue Gallery, Milan Private collection, Milan Literature "Quarant'anni in Blu" Milan, Galleria Blu, 1997, p. 56 ill. in colour This work is registered in the Archives with no. F.1058 This work is accompanied by a certificate of authenticity issued by the Jean Louis Delaunay and Richard Riss, with no. SD 10 374 1058