"Didn't anyone notice that the Imperial proofs on the right reciever are upside down?"
Tom, turn the picture rightside-up

I'll buy the DDR c/N, but if you look really closely you can see the tops of the Erfurt E and T, and just a bit of the upper-right of the crown on the toggle.
Gerben,
I'd really want to see a good closeup of the eagle before I would confirm this as a Reichs eagle, considering the entry in Costanzo. Also, Costanzo (p.252) shows the 1930/31 lazy c/U with an intermediate crown-top between the actual crown and the U, which the DDR c/U lacks.
No one has any thoughts on the starburst-letter, eh?
I like Lugers like this, they are authentic, different and unique, and tell a long story. To my mind they are definitely collection-worthy.
--Dwight