1960. Fourth Edition. 277 pages. Illustrated dust jacket over brown cloth covered boards with gilt. Pages remain clear with minimal tanning and foxing. Binding remains firm. Cracking to hinges, no damage to end papers. Boards have mild edge-wear with slight rubbing to surfaces. Mild crushing to spine ends. Gilt lettering is bright and clear. Book has a slight forward lean. Unclipped jacket has light edge-wear with tears and creasing.