1964. First Edition. 151 pages. No dust jacket. Green card covered boards. Black and white diagrams throughout. Binding remains firm. Pages and diagrams remain bright and clear with light tanning to endpapers. Pencil inscription to front free endpaper. Pencil annotations to some pages with slight stains and markings. Boards have light shelf-wear with corner bumping. Slight crushing to spine ends. Card worn away to bottom corner of front board. Wear marks overall.