900. Sam Francis (American, b, 1923) "Untitled", c. 1964; color lithograph, 17.5" x 13", signed. Letters from the "Friends of Art" (Nelson-Atkins Museum, Kansas City) accompany the lot. Highly important contemporary artist. Francis studied at the University of California, and has been painting abstracts since 1947. Francis’ work is spontaneously "unintentional". 1200-1800