1960. Fourth Impression. 463 pages. No dust jacket. Green cloth. Black and white illustrations and photographs throughout. Binding remains firm. Pages and illustrations have light tanning and foxing throughout. Previous owner's inscriptions to front free endpaper. Annotations to some pages. Boards have moderate shelf-wear with bumping to corners and rubbing to surfaces. Light sunning to spine and edges with crushing to spine ends. Water staining to bottom edge of spine. Staining overall.