1968. Fourth Edition. 250 pages. Pictorial dust jacket over red cloth. Contains black and white photographic plates. Pages and plates are lightly tanned and foxed throughout. Light thumb-marking present. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends. Clipped jacket has moderate edge wear with chips, tears and creasing. Rubbed marking to surfaces. Brown staining to front panel.