1959. Tenth Impression. 74 pages. Illustrated dust jacket over yellow cloth covered boards. Pages remain clear with minimal tanning and foxing, mild to end-papers and text-block edges. Binding remains reasonably firm. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Moderate tanning to spine. Mild crushing to spine ends. Book has a slight forward lean. Clipped jacket has moderate edge-wear with chips, tears and creasing. Moderate tanning to spine.