1970. First Edition Thus. 205 pages. Pictorial dust jacket over blue cloth. Black and white photographs and diagrams. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. Heavy inscriptions to endpapers. Boards have moderate shelf wear with mild bumping and fraying to corners and crushing and fraying to spine ends. All surfaces tanned and sunned. Gilt lettering remains bright and clear. Unclipped jacket has light edge wear with minor tears, chipping and creasing. All surfaces heavily tanned.