1969. Sixth Impression. 446 pages. No dust jacket. Green cloth with gilt. Pages have mild tanning and foxing throughout, moderate at end-papers, paste-downs and text-block edges. Minor pencil marking to front free end-paper. Binding remains firm. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Cloth has minor damp and dust stains. Book has a slight forward lean. Sunning to spine. Gilt lettering is bright and clear.