Thanks for the welcome everyone!
I'm also extremely interested in the mechanics of the wepons. I've already disassamled and reassambled the Luger completely for two reasons. I cleaned it's every single part, and on the other hand I learnt it's action. Overall it was cleaned well, but I brushed out a lot of contamination under the extractor, and from the extractor itself. I've already knew the action, but only from books, and from the net. I was amazed, when I saw it in practice.
I carry it with no ammo in the chamber, and of course striker not tensioned. And only 7 rds in the mag, so not to burden the mag. spring. (Which is indeed very strong.) But any advice is kindly welcome!
Back to the history. Can someone please tell me the manufacturing month of my gun?

And any info is welcome too, because I don't have that detailed information about the Luger's history. I'm searching on Amazon, but found hair-raising prices.