1954. Second Revised Edition. Unpaginated. Pictorial dust jacket over orange cloth. Contains colour plates. Pages remain bright with minimal tanning. Thumb-marking present. Text is clear. Binding remains firm. Boards have mild edge-wear with bumping to corners. Boards are presumed clean as jacket is stuck down. Unclipped jacket. Panels have heavy edge wear with some areas of loss, tears, chips, and creasing. Traces of tape all over.