LetterBox IPP42 Exchange Puzzle
1 October 2025Edward Hordern IPP Puzzle Exchange – Tokyo, September 2025. Designed by Frank Potts. Made by Mr Puzzle Exchanged by Brian Young. 105 made. Original Price:…

This is NOT an impossible object. With the correct sequence of 24 moves this interlocking burr can be disassembled. Two sets of 4 piece burrs interlocked together that make it appear as though you’re seeing double!