Multigrain burr

Multigrain burr designed by Stewart Coffin and crafted by Mr Puzzle 

This is a tricky puzzle. Very stable in its assembled state but it comes easly apart once the first piece is been removed. The challange is to put the pieces back together. Obviously the difficulty increases if you mix the pieces and wait a few hours or a few days before putting everything back together. I am the original buyer and the puzzle is in great condition (solved few times). Note: the stability of the puzzle in its initial state can vary greatly with humidity. Below 50% there is a risk that the first piece will fall off by itself simply by orienting the puzzle in the right position. I recommend a humidity of around 60%. The puzzle comes with original box and solution sheet. More info here: Mr Puzzle.

The puzzle is always stored in a smoke-free, humidity-controlled environment. 
Please feel free to ask any additional information.
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