1961. No edition remarks. 264 pages. Pictorial dust jacket over brown cloth. Black and white photographs and fold-out diagrams. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Binding remains firm. A previous owner's name to front free endpaper. Boards have moderate shelf wear with mild bumping and fraying to corners and crushing and fraying to spine ends. Some mild marks and staining to surfaces. Unclipped jacket has heavy edge wear with tears, chipping and creasing. Some tape repairs.