Recently dug up the following photographs.
First, a little history. Every Authorised Panerai Dealer has a large black suede covered box containing the tubes (for the leather straps), screw pins and other assorted small screws for the watches he sells. In this way, when you buy a new OEM strap he simply choses the tubes of the correct diameter and length from the contents of the box, and fits the strap.
A few years ago Panerai decided to market a similar box for the public, calling it the First Aid Kit. The box is the same material as a watch box, polished Pear wood, with a black interior, and comes complete with Loc-Tite, a set of screwdrivers, replacement screwdriver tips, a pair of tweezers and 14 numbered boxes containing screws and tubes. There is also a folded card in the lid detailing how to change straps, put Loc-Tite on screw heads etc.
This item is no longer in production, and although I can't find out how many were originally produced, it is
very rare - thought you might like to know it exists!
(Don't bother asking Panerai - I have already and they can't help!!)