This is the original IPP 30 exchange puzzle designed by Matt Dawson, made by Robert Yarger (Stickman) for IPP 30 in Japan.
The objective is opening the two puzzle boxes. The original box and solution sheet are included.
Buyer please covers the 4.5% PayPal fee.
UK shipping: £7. EU shipping: £20. Rest of the world: £30.
Thanks for looking.