1964. Fourth Edition, revised. 295 pages. Blue dust jacket over red cloth with gilt. Decorated end-papers. Illustrated with black and white photos and drawings. Pages remain clear with minimal tanning and foxing. Plates are bright and clear. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces. Gilt lettering is bright and clear. Book has a slight forward lean. Clipped jacket has light edge-wear with tears and creasing. Brown dust marks to all panels. Brown tape marks to reverse of jacket.