Blue Blood Stone (SF-7)

SAM FRANCIS (1923-1994) Blue Blood Stone (SF-7) lithograph in colors, on Rives BFK paper, 1960, signed in pencil, numbered 27/50, published by Kornfeld and Klipstein, Bern, Switzerland, the full sheet, in very good condition Sheet: 35 1/2 x 24 7/8 (902 x 632 mm.)