1967. Twenty-Sixth Impression. 434 pages. No dust jacket. Red cloth boards with gilt lettering to spine. 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. Boards are bowed. Book has a slight forward lean. Tanning to spine and edges. Gilt lettering is bright and clear.