1964. Second edition. 162 pages. Brown dust-jacket over blue cloth. Black & white illustrations throughout. Pages remain bright and clear with minimal tanning and foxing. Stamp to front endpaper. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Spine has crushing to both ends. Book has forward lean. Unclipped jacket has light edgewear with tears and creasing. Jacket has moderate tanning. Green marking to front.