1953. First Edition. 236 pages. Pictorial dust jacket over green cloth. Black and white photographs and diagrams. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Binding remains firm. Minor pencil inscriptions to front free endpaper. Boards have moderate shelf wear with mild bumping and fraying to corners and crushing and fraying to spine ends. All surfaces tanned. Gilt lettering to spine is dulled but remains brighter on front. Clipped jacket has heavy wear with tears, chipping and creasing. Some rubbing and marking to surfaces.