1971. New and Revised Edition. 415 pages. No dust jacket. Brown cloth boards with gilt lettering to spine and front. Binding remains firm. Crinkling to pages at gutters. Pages remain bright and clear with minimal tanning. Previous owner's inscription to front endpaper. Boards have mild edge wear with slight rubbing to surfaces. Crushing to spine ends. Gilt lettering is bright and clear. Book has a slight forward lean.