1969. 4th Edition. 440 pages. Pictorial dust jacket over blue cloth. Black and white photographs and illustrations throughout. Binding remains firm. Pages and illustrations have light tanning and foxing throughout. Pencil inscription to front free endpaper. Minor dog-eared corners. Boards have light shelf-wear with corner bumping. Very slight crushing to spine ends. Unclipped jacket has light edgewear with chips and creasing. Light tanning to edges. Light foxing overall.