Sam Francis (1923-1994) Blue Bones (Lembark L.77, SF-64), 1964 Lithograph in colors on Rives BFK paper, signed in pencil, from the edition of 101, co-published by William Rockhill Nelson Gallery of Art and Atkins Museum of Fine Arts, Kansas City, printed by Emil Matthieu Atelier, Zurich, the full sheet, framed. sheet 17 3/4 x 13 1/4in (45.1 x 33.7cm)