1971. Reprinted. 258 pages. Pictorial dust jacket over brown cloth. Black and white photographs and diagrams. Pages remain bright and clean with minimal tanning and foxing. 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. Gilt lettering remains bright and clear. Unclipped jacket has light edge wear with minor tears, chipping and creasing. Some tanning and foxing to all surfaces, particularly to spine.