1920. Eleventh Edition. 577 pages. No dust jacket. Green cloth. Contains black and white and colour illustrations throughout. Pages remain bright and clear with minimal tanning and foxing. Heavier tanning to pastedowns and half title page. Pen inscription to front pastedown. Thumb-marking present. Some creasing to gutter. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Visible crushing to spine ends. Notable tanning to spine and edges. White and black marks to boards. Bubbling to rear board. Textblock is shaky.