BOSCO, Signor (Saul Abram Warschawski, 1833–1906). SIGNOR BOSCO THE GREAT NECROMANCER. ILLUSIONS!! Ilkley: J. Shuttleworth, Printer, ca. 1875. Bosco appears at the Concert Hall, Wheat Sheaf, Ilkley, together with his wife, Madame Bosco, “the world renowned clairvoyant.” 22 × 8½". Soiled and wrinkled, with small losses and contemporary notes in blue pencil and ink.