1966. No edition remarks. 335 pages. Pictorial dust jacket over blue cloth. Black and white photographs and diagrams. Pages remain bright and clean with minimal tanning and foxing. Minor pencil inscriptions to front free endpaper. 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.