1969. No edition remarks. 271 pages. Green dust jacket over blue cloth. Archive copy. Pages are bright and clear with no visible markings. Binding throughout remains firm. Pencil inscription to front endpaper. Smudges to fore edge. Boards have light edge wear with minor corner bumping. Mild crushing to spine, with occasional markings overall. Panels have light edge wear with some creases. Minor markings to all surfaces.