1964. Third Edition. 243 pages. Orange jacket over black cloth. Contains black and white diagrams throughout. Pages are lightly tanned, with minor foxing to edges, but text remains clear. Binding is firm. Previous owner's inscription to front free endpaper. Boards and spine have minimal shelf-wear, with minor corner bumping and crushing to ends. Unclipped jacket. Light tanning to all surfaces. Visible marks to inside front panel, with moderate water staining to spine. Noticeable edgewear, with ripping, chipping, creasing and loss to spine.