1974. Seventh Edition. 473 pages. No dust jacket. Half bound black leather with blue cloth. Clean pages with light tanning and foxing throughout. Tightly bound with visible thumb-marking throughout. Missing front endpaper. Previous owner's inscription to front pastedown. Moderate annotations and marginalia to pages throughout. Boards have light edgewear with corner crushing and notable marking to boards. Heavy sunning to spine, which has mild peeling to ends. Notable scuffing to edges and spine. Mild droplet to front board. Notable cracking to rear joint.