23. 23AR SONIA DELAUNAY (1885-1979) Black and White I & II, 1968 Set of two lithographs in black on Arches wove paper Signed and one annotated "HC 8/25" and numbered 7/75 66.5 x 50.5 cm - 65 x 50 cm Set of two black lithographs on Arches wove paper, signed and one annotated 'HC 8/25' and numbered 7/75 Provenance Collection Jacques Damase, Paris Private collection, Paris