1968. No Edition Remarks. 112 pages. Pictorial jacket over blue cloth. Contains black and white diagrams throughout. Photographic plates to centre of textblock. Pages are lightly tanned, but text remains clear. Plates are bright. Binding is firm. Previous owner's inscription to front free endpaper. Boards and spine have minimal shelf-wear, with mild corner bumping and crushing to ends. Spine is slightly sunned. Unclipped jacket. Mild foxing to all surfaces. Panels have light edgewear, with small tears, chips and creases, heavier to spine ends. Visible marking to exterior.