1967. Twenty Fifth Edition. 1804 pages. No dust jacket. Black cloth with gilt. Pages remain clear with minimal tanning and foxing. Cracking to hinges, no damage to end papers. Some occasional mild cracking to gutters throughout, binding is shaky. Boards have mild edge-wear with slight rubbing to surfaces. Mild crushing to spine ends. Gilt lettering has become dull. Cloth has minor damp and dust stains. Book has a slight forward lean.