1962. Fifth impression. 160 pages. Pictorial dust jacket over purple cloth. Black and white photographs and diagrams. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Binding remains firm. Boards have light shelf wear with minor corner bumping and crushing to spine ends. All surfaces tanned and sunned, particularly spine ends. Clipped jacket has heavy wear with tears, chipping and creasing. Spine noticeably sunned.