1968. First Edition. 968 pages. Plain dust jacket over green cloth covered boards with gilt. Pages remain clear with minimal tanning and foxing. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces. Mild crushing to spine ends. Book has a slight forward lean. Gilt lettering is bright and clear. Top edge of text block is dust marked. Unclipped jacket has light edge-wear with tears and creasing. Moderate tanning to spine.