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This is a rare puzzle by Stewart Coffin, his design #39. He invented this puzzle in 1983 and made it in wood, since then this puzzle become famous for two things. First, for the difficulty of making it accurately in wood, and second for the difficulty of assembly. Ironically, it seems the more accurately this puzzle is made, the harder it is to put together!
You are purchasing a 3D-printed copy of the puzzle. It is made from eSun PLA+ (red, purple, yellow).
More info here: https://www.thingiverse.com/thing:4555301.
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.