FOUR VOLUMES UNIFORMLY BOUND. All edges gilt, sewn-in silk bookmarks, Covers and spine lettered and designed in gilt. Covers all show the same robot. See photos. Color frontispieces in each volume by Stephen Youll. "I, Robot" in green leather, "The Robot of Dawn" in brown leather; "The Naked Sun" in rust leather, and "The Caves of Steel" in blue leather. One small dark mark near top of front cover of "The Robots of Dawn", otherwise a pristine set. 253, 419, 187, 224pp. Size: Large Octavo.