Chinese Opal (Lembark L111)

SAM FRANCIS (1923-1994) Chinese Opal (Lembark L111) lithograph in colors, 1970, on Rives BFK, signed in pencil, annotated 'color trial proof' (one of 8 unique color trial proofs, the edition was 15 plus 2 artist's proofs), published by The Litho Shop, Inc., Santa Monica, the full sheet, in very good condition, framed S. 35¼ x 25 in. (895 x 635 mm.)