1963. Fifth Impression. 338 pages. Blue dust jacket over blue cloth with gilt. Pages remain clear with minimal tanning and foxing. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces. Mild crushing to spine ends. Gilt lettering is bright and clear. Cloth has minor damp and dust stains. Book has a slight forward lean. Unclipped jacket has light edge-wear with tears and creasing. Moderate tanning to spine.