580pp, black and white frontispiece, charts, diagrams and photographs, illustrative endpapers. Dark blue cloth-covered boards with silver titles on spine. 8vo. Sun faded spine; ends and corners lightly rounded. Text block dropped, dusty top text block edge. Tanning on endpapers, inscription in pen on one front endpaper (dated March 13th 1941), small closed tear at bottom of first contents page, but otherwise very neat, clean, bright and tight.