1961. First Edition Thus. 435 pages. Pictorial card. Sentry edition. Pages remain bright and clear with in text block. Mild foxing to end papers. Evidence of mild water warping to upper edge of some pages. Small folds to some pages. Mild tanning and foxing to text block edges, as well as mild water staining to upper text block edge. Panels have light shelf-wear with corner curling. Light rubbing all over. Small stain and droplet to rear panel. Mild tanning all over.