Before there were the cheap plastic Smarteggs, there were a few expensive wooden ones. Designed by András Zagyvai, made from bird cherry wood, this is number 2L-B-4/100. Unlike the simple plastic versions, this has a movable, rotatable center shaft that compounds the complexity of the puzzle. The smartegg was a "Jury Grand Prize" winner at the IPP 2012 design contest (though maybe not this particular instantiation).
If you win this auction, please do not ask for a reduced customs declaration, as I will insure the puzzle for the full value for shipping, and because of that, I need to declare the full value to customs.