1953. No Edition Remarks. 142 pages. Pictorial dust jacket over blue cloth. Black and white diagrams throughout. 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 and sunned, particularly spine. Book has slight backwards lean. Unclipped jacket has heavy edge wear with tears, chipping and creasing. All surfaces heavily tanned, particularly spine.