Original ballpoint sketch of a matador and bull in a spectator-filled arena, on the title page of the book Picasso by Jean Cassou (Paris, no date), softcover, 4.75 x 6.5, signed and dated, “Picasso, 1.14.57.” Toning, soiling, a few chips, and partial detachment to covers, the sketch (partially over printed portion of page) remaining clean, bright, and fine. COA John Reznikoff/PSA/DNA and R&R COA.