1949. No edition stated. 244 pages. Illustrated jacket over blue cloth with silver titles to spine. Includes photographic plates and a fold-out chart. Pages have slight foxing, tanning and minor thumbing. Previous owner's inscription to front endpaper. Slight tearing to front pastedown where jacket was taped down. Boards have some moderate edge wear, with slight bumping to corners and minor bumping to spine ends. Silver titles are bright. Unclipped jacket has light edgewear with small tears and creasing. Jacket is slightly rubbed and marked overall. Jacket is taped to pastedowns.