Untitled

Richard Diebenkorn (1922-1993) Untitled signed 'RD' and inscribed in another hand 'authenticated by Phyllis Diebenkorn 1718' (on the reverse) charcoal and ink on paper 13 7/8 x 16 7/8 in. (35.2 x 42.9 cm) Executed circa 1960-1966.