1968. Fourth Impression. 128 pages. No dust jacket. Grey cloth. Contains black and white illustrations throughout. Pages remain bright and clear with minimal tanning and foxing. Previous owner's inscription to front free endpaper. Thumb-marking present. Visible creasing to gutter. Binding remains firm. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Soft crushing to spine ends. Noticeable tanning to spine and edges. Brown marks overall.