1951. Reprinted. 145 pages. No dust jacket. Blue cloth covered boards. Black and white photographs and illustrations. Some fold out diagrams. Map in pocket on rear pastedown. 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 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.