37 volumes. 8vo. Numerous engravings. Contemporary half navy morocco gilt, top edges gilt, others uncut (light rubbing).

LIMITED EDITION, number 23 of 90 copies of the “Memorial edition,” SIGNED BY THE PUBLISHER.

[Tipped in to volume I:] CLEMENS. Autograph manuscript. 2 pages, 8vo, (222 x 142 mm) in ink with a few ink and pencil corrections. On recto, approximately 25 lines comprising text from The Secret History of Eddypus, the World Empire (1901-02). On verso, approximately 42 lines in two columns comprising Twain's preliminary notes for the work, including the names of scientists, inventors, authors, industrialists and other influential historic figures alongside Twain's initial notes for the work. In part: "Write a history? Do you mean it? A History of Holy Eddypus, the World-Empire?  With all my heart! What larks! You mean a real history, of course, not the rack of pious lies which the Church calls history..." Twain's The Secret History of Eddypus, the World Empire remained unpublished until 1972, when it was included in Tales of Man.