1971. Revised & Combined Edition. 348 pages. Blue dust jacket over grey cloth. Contains black and white illustrations throughout. Pages remain bright and clear with minimal tanning and foxing. Light creasing to gutter. Boards have mild edge-wear with slight rubbing to surfaces. Soft crushing to spine ends. Minor tanning to spine and edges. Small marks to boards. Textblock is shaky. Unclipped jacket has heavy edgewear with some areas of loss, heavy tears, chips and, creasing. Light tanning to spine. Visible rubbing to surfaces. Scuffing to edges.