1918. Tenth Edition. Unpaginated. No dust jacket. Illustrated paper covered boards with cloth spine and lettering. Contains black and white illustrations and plates. Slight crinkling to gutters however binding remains firm. Pages, illustrations and plates remain clear with minimal tanning and foxing. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Slight crushing and fraying to spine ends. Visible wear marks to boards.