
Then I tried the right side - nothing - I looked inside the barrel and at the lock-up with the receiver I noticed a marking: REP symbol is on the inner left side of the barrel, double struck no other marking are visible from the right side.

But then I looked further on the left side, on the outside of the barrel; there is an E in a circle - upside down and a YS in a box upside down!

This made me question the AI marking as possibly an upside down LV
Who knows. Any ideas what to do - what it means - I have not taken possession of the gun yet - anyone else run into this?
Thanks,
TD8