Unusual 1918 DWM

[sheepherder]

Originally Posted by John Sabato

... but the reality is that the three holes in the chamber area of the upper receiver are not a death blow to this pistol. The barrel can be replaced and the the holes in the receiver will be of no consequence. This gun would make a perfectly acceptable shooter class Luger...

...If the threads are intact...Those holes might be for setscrews to hold in a dummy barrel because the threads have been drilled out...

...Can't figure out what that spherical ended plug would be used for...