1958. First Edition. 496 pages. No dust jacket. Green cloth covered boards with gilt. Black and white photographs and diagrams. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. Signs of water damage to textblock. Page 17 torn out but present. A previous owner's name to front free endpaper covered with label. Boards have heavy shelf wear with bumping and fraying to corners and crushing and fraying to spine ends. All surfaces tanned and sunned, particularly spine. Gilt lettering to spine is heavily dulled. Some additional marks and staining to surfaces. Boards are slightly bowed.