No edition remarks. 128 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. Boards have light shelf wear with minor corner bumping and crushing to spine ends. Some mild marks and staining to surfaces. Unclipped jacket has light edge wear with minor tears, chipping and creasing. Some rubbing and marking to surfaces.