Six uniform volumes, published in 1914. Three-quarter black leather calf with gilt titles to spines. Interiors and clean and unmarked. Beautiful marbled endpapers. All 6 volumes are rubbed to extremities and the spines. Varies from very mild to moderate except the spine of volume 3 which is heavily rubbed but still readable. Profusely illustrated with colour plates, graphs, line drawings and illustrations. Please inquire for shipping cost to your address.