Eleventh Edition (New Era). 335 pages. No dust jacket. Blue cloth. Pages remain clear with minimal tanning and foxing, mild to end-papers and text-block edges. Previous owner's inscription to front free end-paper. Binding remains reasonably firm. Cracking to hinges, no damage to end papers. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Mild crushing to spine ends. Book has a slight forward lean. Moderate tanning to spine.