1910. Sixth edition. 1803 pages. No dust jacket. Fully bound red leather with gilt. Black and white illustrations throughout. Colour illustration plates with tissue guards. Gilt edges to textblock. Ex libris plate at front. Pages remain bright and clean with minimal tanning and foxing. Binding remains firm. Some page corners folded. Boards have moderate wear with bumped and abraded corners. Spine ends similarly worn and spine itself scuffed. Gilt lettering remains bright and clear. Some mild marks and staining to surfaces.