1941. Sixth Edition. 144 pages. No dust jacket. Blue cloth with gilt lettering. Contains black and white illustrations throughout. Pages remain bright and clear with minimal tanning and foxing. Heavier tanning to free endpapers. Pencil inscription to front free endpaper. Thumb-marking present. Visible creasing to gutter. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Light crushing to spine ends. Noticeable tanning to spine and edges. White marks and scratches to boards. Textblock is shaky. Boards are slightly bowed.