1955. Fourth Impression. 105 pages. Plain dust jacket over blue cloth covered boards. Pages remain clear with minimal tanning and foxing, mild to end-papers and text-block edges. Previous owner's inscription 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 moderate edge-wear with chips, tears and creasing. Moderate foxing. Moderate tanning to spine.