1967. Fifth Impression. 143 pages. Plain dust jacket over red cloth covered boards. Pages remain clear with minimal tanning and foxing. Presentation plate to front free end-paper. Binding remains firm. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Mild crushing to spine ends. Book has a slight forward lean. Unclipped jacket has light edge-wear with tears and creasing. Moderate sunning to spine.