1951. Twenty First Edition. 336 pages. No dust jacket. Red cloth covered boards with gilt. Includes several colour fold out maps. Pages remain clear with minimal tanning and foxing. Previous owner's ink stamp to front free end paper. First fold out map is creased down one side. Binding remains firm. Boards have mild edge-wear with slight rubbing to surfaces. Mild crushing to spine ends. Gilt lettering is darkened. Book has a slight forward lean. Boards have minor damp and dust stains.