Sam Francis (American, 1923-1994) Deep Ground (L. L259; SF-286; G. 1155), 1982-84 Lithograph in colors on wove paper, signed in white pencil and numbered 14/15 (there were also 6 artist's proofs), with the blindstamp of the publisher, Gemini G.E.L., Los Angeles, printed by Serge Lozingot, the full sheet. sheet 60 x 50in