1950. Eleventh Edition. 517 pages. No dust jacket. Green pictorial cloth covered boards. Colour illustrations and black and white photographs throughout. Maps across endpapers. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Some heavy cracking to gutters with exposed netting. Binding very loose. Small bookshop label to front pastedown. Boards have heavy shelf wear with bumping and fraying to corners. Spine heavily worn and deteriorating. Title label worn away.