Erfurt

[merc]

Hi Guys
Here is the Erfurt luger I told you guys about last week.
I have listed the markings on it and a couple of pictures.
Maybe some of you may be able to offer a little insight on it.
Is it military or commercial? Was it a rework (because it has 2 dates? etc.
Thanks
Paul
on top of reciever 1920
1917
left side of receiver 1886
on safety bar on receiver 14
on right side of receiver looks like a group of stars
a crown
3 symbols or numbers unable to read
part of a faded eagle
under the barrel a crown
N
753
xxCSAPENNSAIIKEN (x being illegible letters)
on tang under the slide 2 DOTS
on magazine PO8
fxo
eagle (made of lines)
37
bottom of magazine 1
6702
on side plate 86
inside side plate W
on toggle a crown
ERFURT
30 (with an X through it)
a small crown
a fancy G
left side of bolt a faded eagle
30 (with 2 lines through it)
a fancy G
on take down lever 86
on left of the trigger 86
On left side of the frame A
Front of frame 1886
unidentifiable mark
V in a circle
toggle pin 62 with an X through it
inside frame-near take down pin X
front of trigger guard 2 crowns and a fany letter