Invented by Stewart Coffin. It is his design number 25A. Check out the original patent from 1973!
This version is injection-molded plastic with rods that are 2.5" long.
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
Buyer may choose supplemental insurance at their expense.
Please wait for the updated invoice before making payment.