Demon Second Sight Casket. London: Davenports, 1940s. Small brass-bound hardwood box with lock into which a billet, photo, or other item is placed. Despite its locked condition, the mentalist instantly “sees" the contents. Subtle locking mechanism allows the casket to be examined. Mahogany finish. 7 x 4 ¾ x 1 ¾". Very good.