1968. Reprint. 492 pages. No dust jacket. Blue cloth with gilt lettering. Book2. Contains black and white illustrations. Binding remains firm.Pages remain bright with minimal tanning. More pronounced tanning and foxing to free end papers and pastedowns. Mild mottling to boards. Mild tanning to spine and edges. Boards have moderate edge-wear with bumping to corners and noticeable rubbing to surfaces.