1971. No edition remarks. 321 pages. Blue dust jacket over blue cloth with gilt. Pages remain clear with minimal tanning and foxing. Previous owner's inscription and stamp to front free end-paper. Minor pencil marks to rear free end-paper. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces. Mild crushing to spine ends. Dust mark to bottom edge of text-block. Clipped jacket has heavy edge-wear with some areas of loss, heavy tears, chips and creasing.