No edition remarks. 236 pages. No dust jacket. Pictorial cloth covered boards. Black and white photographs and diagrams. Colour frontispiece. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Binding remains firm. Boards have moderate shelf wear with mild bumping and fraying to corners and crushing and fraying to spine ends. All surfaces tanned and sunned, particularly spine. Gilt lettering to spine is dulled but remains brighter on front. Some additional mild marks and staining.