Karakuri - Line Symmetric Traps

Karakuri states-
"The drawer is locked, and there are two plates on the top.
Please open the drawer completely, while manipulating the two plates.
If you can see the back space of the drawer, you’ve done well.
As the title of this item suggests, two Line Symmetric devices are really used. 
In actuality, the same inverted devices are really used.
Two traps are waiting there."

In excellent condition.

The box was solved once and then put away.

Buyer to pay the carriage charge which will be calculated when I know the delivery address.

Payment by PayPal Friends and Family or buyer pays the PayPal fee if sent as payment for goods.