Hi JM,
Your English is very good! But the pictures are better!!
In short - from the photographs above - while I *might* have a few issues left unanswered - the HK above looks like it is probably correct. These issues are:
Take-down lever - your picture is only fair. I am looking for the correct polishing marks, which I can not see in your pictures;
Internal pictures. These are not present, so I do not know if the internals are correct as marked;
Polishing on toggle links. Appears correct from the pictures? TL Stamp looks correct as well - but again - only first hand inspection woud tell..?
OK - so *if* it is verified - what would it be worth?
In that barrel length in the represented condition - it would sell for approximately $15,000 - $20,000 US.
However - that is if it is all "correct" in straw/blue - and the internals are correctly stamped for an Early "P Code". Only a personal inspection by a noted collector could determine those, however (there are some pretty great fakes of "P-Code" Krieghoffs I've seen..!!)
From these few pictures - I'm more inclined to say yours is not a fake - but again, I can't say it isn't until your HK is verified by a collector who knows Krieghoffs and also knows what to look for.. Since you are in France - and I am in the USA - that person probably would not be me!!
John D.