1966. Third Edition. 480 pages. Blue dust jacket over green cloth boards with gilt lettering to spine. Black and white illustrations, photographs and plates throughout. Revised by Brian H. Day. Binding remains firm. Crinkling and light cracking to pages at gutters. Pages remain bright and clear with minimal tanning. Boards have mild edge wear with slight rubbing to surfaces. There is bumping to corners and crushing to spine ends. Tanning to spine and edges. Book has a slight forward lean. Unclipped jacket has heavy edge wear with some areas of loss, heavy chips, tears and creasing. Tanning to spine and edges.