HOUDINI, Harry (Erik Weisz, 1874 – 1926). The Unmasking of Robert-Houdin and Handcuff Secrets. London: George Routledge & Sons, 1909. Brown pictorial cloth. Frontispiece of Houdini, plates and illustrations. A combination of two of his works, released by Routledge for the British market. With “Imported by E.P. Dutton" overslip tipped to title page. 8vo. All but disbound, old tape stain to fly and front pastedown, page edges soiled. INSCRIBED, INITIALED, AND SIGNED TWICE by Houdini on the flyleaf: “I bot [sic] this book from the Becker Sale HH / Harry Houdini / Signed July 28/1918" and again below: “To Harry H. Poppe / Best Wishes from / the Author / Harry Handcuff Houdini / Oct 20/1921." The single large block capital letter H in Houdini's lower signature here was infrequently used by the magician when autographing his books.