[lugerholsterrepair]

Markus..If there are no proofs on the right side and there is a 1918 date the proofs have been removed. Likely done when it was reblued. Odd that these would be scrubbed and no other markings disturbed but if it is a 1918 military those markings were once there.

There is only one other possiblity I could think of and I have never heard of it..the pistol was made late in the war..not proofed or accepted nor issued to the military. Even then though it would have some firing proofs such as a Crown U or Crown N as all German weapons must pass firing proofs. It would then have likely been marked Germany somewhere on it.

More likely the military acceptance was taken off.