1966. Fourth edition. 556 pages. No dust jacket. Red cloth covered boards with gilt. Black and white illustrations throughout. Colour and black and white maps. Pages remain bright and clean with minimal tanning and foxing. Binding slightly loose. 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 remains bright and clear. Some additional mild marks and staining. Boards are slightly bowed.