1940. Reprinted. 307 pages. No dust jacket. Blue cloth covered boards with gilt. Black and white photographs and diagrams. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Binding remains firm. A previous owner's name to front free endpaper. Boards have heavy shelf wear with bumping and fraying to corners and crushing, fraying and tearing to spine ends and edges. All surfaces tanned and sunned, particularly spine. Gilt lettering to spine is slightly dulled.