1968. Sixth Printing. 309 pages. No dust jacket. This is an ex-Library book. Black cloth with gilt. Library copy, with expected inserts, stamps and inscriptions. Pages remain clear with minimal tanning and foxing. 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. Sunning to spine. Gilt lettering is darkened.