1972. Revised Edition. Unpaginated. Pictorial dust jacket over brown cloth. Contains colour photographic plates. Pages and plates remain clear with minimal tanning and foxing throughout. Minor pencil inscription to front free endpaper. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends. Unclipped jacket has light edge wear with chips, tears and creasing. Light scuffing to spine. Light sunning to spine and edges.