1972. 2nd Impression with Revisions. 427 pages. Dust jacket over red cloth. Pages remain bright and clear with minimal tanning and foxing. Binding remains firm. Boards have noticeable edge wear with corner bumping and rubbing to surfaces. Gilt lettering is bright. Light sunning to edges with some crushing to ends. Unclipped dust jacket. Panels to dust jacket have heavy edge wear with chips, tears and areas of loss.