Mechanical Iris Puzzle Box (from Codex Silenda)

NOTE: This puzzle was customized with my name laser etched on the inside cover (see photos).  

The Codex Silenda is a wildly popular and enormous seven-page puzzle book that requires solving each page to get access to the next.  This puzzle box uses one of those puzzle pages (the Mechanical Iris) to lock a large box.  What would you hide in there?  A gift?  Candies?  How about more puzzles?!?!

This is a very large puzzle, measuring 12"x9"x6.5".

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.