This is one of Stewart Coffins lesser known designs. The 5 pieces go together to make a cube. But doing so is trickier than it may seem. It is a serial, interlocking assembly. I have also included a small box to hold the assembled puzzle.
Approx. Size: 2" x 2" x 2" (5.1cm x 5.1cm x 5.1cm)
Designed by: Stewart Coffin