1958. Tenth Edition. 732 pages. No dust jacket. Blue cloth covered boards with gilt. Pages remain clear with minimal tanning and foxing. Minor dog-eared corners appear occasionally. Cracking to hinges, no damage to end papers. Some occasional mild cracking to gutters throughout, binding remains reasonably firm. Boards have mild edge-wear with slight rubbing to surfaces. Mild crushing to spine ends. Cloth has minor damp and dust stains. Book has a slight forward lean. Gilt lettering is darkened.