Don,
29 DWM Navy S/N 8377s, Navy property MA O.1292. with 1920 reichswehr chamber date.
All matching except the firing pin. And I don't know about the mag, a matching number but I think a field armorer match.
Don, I hope/ think this is what you want. If not please don't hesitate to ask. I'll send photo's of whatever you'd like. I would be proud to have it included in your research.
I just happened upon it on dumb luck. From my research I'm finding they are somewhat scarce.
Blue Skies, Jesse
ps, here's a couple photo's of the mag's i promised.