This is really really interesting to me as it has two parallels to a piece of mine.
DWM P.08 frame with no lug and added hold open device
Erfurt double date matching top.
But, it has an unnumbered barrel (Simpson proofed)
sear safety
no unit marks
matching al bottom mag
trigger looks like Mauser (blued)
TD lever strawed but mag release, safety and ejector blued.
non conventional numbering.
Sam Costanzo was of the opinion that it is a post-war gunsmith special--which is probably correct.
Not sure how many post-war gunsmiths would have gone to the trouble of adding a sear safety, but I think the probability of that is higher than the probability of it being a police rewook from the 20-30s.
When I get back from the mediclal clinic today I'll post some pictures.
http://www.worldoflugers.com/index.htm
Gary