1973. Second Edition Revised. 157 pages. No dust jacket. Blue cloth boards with gilt lettering to spine. Black and white illustrative plates throughout. Binding remains firm. Crinkling to pages at gutters. Pages remain bright and clear with minimal tanning. Boards have mild edge wear with slight rubbing to surfaces. Crushing to spine ends. Tanning to spine and edges causing discolouration. Gilt lettering is darkened slightly. Book has a slight forward lean.