[Illusions] Lionel Cohen’s illusion plan notebook. New York, 1912. Being a holographic illustrated notebook compiled by Lionel Cohen of Brooklyn, New York. Containing detailed descriptions with simple yet technical drawings of a wide variety of original illusions and parlor tricks with complicated apparatus. Fancifully named effects include: “Goddess of the Air,” “Bird Cage with Birds Appears on a Pedestal Hanging Therefrom,” “Transformation Card Star,” “Round Cage from Glass Top Base,” and more. Facing pages include a variety of appliances invented by Cohen for use in trained dog acts. The title page states, “To My Dear Friends Martinka & Co. From L. Cohen 1912.” Cover and pages chipped at extremities; good condition overall for this unique and fascinating document. Cohen was a frequent contributor to The Sphinx. His inventions were also marketed by a number of magic dealers, and published in Downs’ Modern Coin Manipulation.