Untitled' by Sonia Delaunay, 1971. Lithograph in colours on hand made Japanese paper, signed and numbered 43/75 in pencil, from the UNESCO portfolio, printed at 2RC Workshop, published by the International Association of Art, with their blindstamp, sheet 63.2 x 45.8cm Framed. Sonia Delaunay-Terk (Ukrainian, 1885 - 1979) was a painter and designer who, together with her husband Robert Delaunay and other artists, developed Orphism. She was born in Hradysk in what is now Ukraine and studied at the Academy of Fine Arts in Karlsruhe from 1903 to 1905. This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution