A notched WW1 DWM receiver, regardless of year, will have left the factory as an Artillery Luger. Erfurt, OTOH, only made Artillery Lugers in 1914. All other Erfurt notched receivers from 1916 through 1918 will have left the factory with a short barrel.
The rework into a police pistol would have been post-WW1 but exactly when and by whom is impossible to determine. The stamp on the right side of the barrel would suggest between 1928 & 1934 IF I'm reading Gortz & Sturgess on page 515 correctly.
|