1969. No Edition Remarks. 335 pages. Pictorial dust jacket over blue cloth. Black and white photographs throughout. Leaflet about engineers inserted to front pastedown. Binding remains firm. Pages and photographs remain bright and clear with pencil inscription to front free endpaper. Boards have light shelf-wear with corner bumping. Very slight crushing to spine ends. Unclipped jacket has light edgewear with chips and creasing. Light tanning to edges. Wear marks overall.