Undated. 320pp, 4 black and white plates including frontispiece. Grey cloth-covered with blue titles on front and spine, top text block edge sprayed blue. 12mo. Spine ends rubbed and rounded, cloth wearing. Corners rubbed and rounded with bump to lower front corner. Text block edges moderately tanned and foxed. Endpapers lightly foxed, front free endpaper missing, previous owners name and address (dated 1945) on half title page. Internally page margins are lightly tanned, otherwise neat, clean, bright and tight.