1937. First Edition. 296 pages. No dust jacket. Blue cloth with gilt titles to spine. With photographic frontispiece. Includes various diagrams. Pages have slight foxing, tanning and minor thumbing. Foxing more noticeable towards the start and end of the book. Prize plate to front endpaper. Text block edges are very tanned and foxed with minor scratches. Boards have some moderate edge wear, with slight bumping to corners and minor bumping to spine ends. Boards a little rubbed and marked overall. Spine is noticeably sunned. Strips of sunning front and rear. Gilt is bright. Book has a moderate forward lean.