1971. Reprinted. 658 pages. Pictorial dust jacket over blue cloth. Black and white photographs and black and white and colour diagrams. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. Boards have light shelf wear with minor corner bumping and crushing to spine ends. Unclipped jacket has light edge wear with minor chipping and creasing. Some tanning and foxing to all surfaces, particularly to spine.