Hypno Disk and Game of 21. Holland: Eddy Taytelbaum, 1950s. A celluloid rectangle featuring a hypno disk design. Hand-painted with gold detailing. 3 ½ x 2 ¾”. Some chipping on celluloid, but paint vibrant. Near fine. The Hypno Disk in this rectangular style is one-of-a-kind, produced for J. H. Van Rinkhuysen. All other versions of this are in the shape of a rounded disk.