1971. No Edition Remarks. 429 pages. No dust jacket. Green cloth covered boards with gilt. Black and white diagrams throughout. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. A previous owner's name to front free endpaper. Boards have light shelf wear with minor corner bumping and crushing to spine ends. All surfaces tanned and sunned, particularly spine. Gilt lettering to spine is slightly dulled.