1967. Fifth impression. Pictorial dust jacket over yellow cloth. Black and white illustrations. Two books bound back-to-back, one inverted. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Binding remains firm. Boards have light shelf wear with minor corner bumping and crushing to spine ends. Some mild marks and staining to surfaces. Clipped jacket has light edge wear with minor tears, chipping and creasing. Spine noticeably sunned.