Esponja de Binimelis - IPP 23 Chicago Exchange Puzzle

Description

Exchange puzzle for IPP 23 (2003) in Chicago. 
Designed by Maria Isabel Binimelis Bassa & Albert Violant i Holz. 
Produced by Juan Binimelis Ramirez.

20 cubes with pins and holes, to be assembled into a cube.

Goal    

Put the 20 pieces of the puzzle together joining pins and holes to form the first iteration of the Menger sponge (i.e., a 3x3x3 cube with the center of each face and the center of the cube empty), so that all the pins remain in the interior of the structure.

The puzzle is located in the United States, but I will ship worldwide.
Customs forms for international shipments will reflect actual payments.
Payments can be made through PayPal (Friends & Family preferred).
Buyer to pay shipping calculated after auction.
Please wait for the updated invoice before making payment.