Robert-Houdin, Jean Eugene. Autograph Letter Signed, “Robert Houdin,” to a Book Dealer. Blois, France, 1866. One sheet of blind-embossed hotel stationery, asking the correspondent to procure a medical volume by Geraud-Teulon on physiology and pathology of the eyes, and providing the current postal address and directions for obtaining the volume from the publisher. Heading and postscript also in Robert-Houdin’s hand. Walnut frame (10 ½ x 6 ½”).