He Bill. I have a RC 1916 (I think Erfurt by all the imperial stampings compared to DWM that dont have them in the same places). Serial number 8034j. All matching on the bottom portion of the gun, except sear bar which has the SN marked out. Toggle is totally different being a S/42 toggle. But this luger has the relieved safety.
Im assuming a Erfurt luger. Let me know if its not.