1956. Tenth Edition. 523 pages. No dust jacket. Red cloth with gilt lettering. Black and white photographic plates and illustrations. Pages are bright and clear with light foxing and tanning to text block edges, pastedowns and free endpapers. Moderate cracking to gutters causing some looseness to binding but pages remain attached. Boards have minor corner bumping and edgewear with mild tanning and scuffing overall. Spine has minor tanning with soft fraying and crushing to ends. Lettering remains bright and clear. Book has a slight forward lean.