1968. 41st Edition. Unpaginated. Illustrative jacket over grey cloth. Contains colour illustrations throughout. Ex-libris plate stuck to front free endpaper. Pages and binding are presentable with no major defects. Minor issues present such as mild cracking, inscriptions, inserts, light foxing, tanning and thumb marking. Overall a good condition item. Boards have mild shelf wear with light rubbing and corner bumping. Some light marking and sunning. Clipped jacket has moderate edgewear with chips, tears and creasing. Visible sunning to spine. Some rubbing to surfaces.