flap each from three adjacent faces to form an equilateral triangle. Originally, the overlapped triangle was glued together, although it is possible to construct a triangular face hinge that does not require glue. The folding pattern for this form was documented by Isao Honda in 1933 alongside the simple cube. It was also documented by Harry Houdini as a "Japanese hexagon puzzle box" in 1922 without the simple cube version, in the company of several other traditional models which he learned from a Japanese acquaintance. Like the cube, this form can also be opened from any of the six square faces by unfolding each pinwheel, but will not fall apart if assembled with glue. Bibliography Ranma-Zushiki, Ōoka Shunboku, 1734 Houdini's Paper Magic, Harry Houdini, 1922 Koten-ni-miri-origami, Satoshi Tagaki, 1993 Extreme Origami, Kunihiko Kasahara, 2001, The Art and Wonder of Origami, Kunihiko Kasahara, 2004, See also Origami Pandora's box External links Instructional Video: How to Fold a Japanese Cube or Gift Box (Tamatebako) Origami