Crystal Ball Casket. Circa 1890. An oblong glass box suddenly and visibly fills with cloth-covered balls, handkerchiefs, or other objects on command. Glass sides secured with nickel plated brass. Release may be operated manually, or via electrical connection through the magician?s table. 13 x 8 x 8 ??. Retains original dry cell coil-wound batteries. Release operates well, but electrical elements not tested. An outstanding, large, and early example of this classic prop, and rare in this form.