Three Way Slider interlocking burr
4 December 2004Sold out 2004 Limited Edition Set of 30. Original Price: AU$350.00 One of these puzzles sold in June 2008 at Baxterweb Puzzle Auctions for USD315.00…

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!