1919. Seventh 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, plates and illustrations remain clear with minimal tanning and foxing. Heavier tanning to free endpapers. Paper covers have moderate edge-wear with slight rubbing to surfaces and curling to corners. Slight crushing and fraying to spine ends. Visible wear marks to boards. Moderate tanning to boards and edges.