1973. Twenty-second Edition. 287 pages. No dust jacket. Blue cloth. Black and white photographic plates. Pages are bright and clear with light foxing and tanning to text block edges and free endpapers. Light cracking to gutters causing slight looseness to binding but pages remain attached. Boards have minor corner bumping and edgewear with mild tanning, staining and scuffing overall. Spine has much heavier tanning with soft crushing to ends. Book has a slight forward lean.