1944. First Edition. 333 pages. No dust jacket. Brown cloth with gilt lettering to spine. Contains black and white diagrams and illustrations, some of which are folded. Colour frontispiece. Pages remain bright and clear with minimal tanning and foxing. Heavier tanning to free endpapers, pastedowns and text block edges. Sticker and pen inscription to front pastedown. Previous owner's inscription in pen to front free endpaper. Binding is firm. Minor markings throughout. Text is clear. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Light crushing to spine ends. Minor tanning to spine and edges. Some small white spots to rear boards. Slight dents to edges. Book has a slight forward lean.