Mauro,
I took photos of all the various parts, proofs and the front strap on my Luger and put them on photobucket.
You can see the pics here:
http://s1028.photobucket.com/albums/...20Tor%20luger/
Maybe you can make something more out of this odd old Thai pistol
I replaced the springs with Wolff (but I kept the originals), and took it out and fired it. It seemed to work quite well with a spare modern Luger mag I have (I didn't use the original since it won't lock the slide back anymore- it does seem to feed fine though).
-Dave