Giving Thanks

[Brit plumber]

The markings are original in my opinion. If you look behind the 3 in Mk3 the weld mark of the rear section passes through the end of the 3.

The original 3 wouldn’t have been milled away and is typical of some ex Greek guns. I suspect a Mk1 mid section has been used to repair the Mk3/L4 kit.

---------- Post added at 11:08 PM ---------- Previous post was at 11:03 PM ----------

Is there a barred out LBxxxx number on the top rear of the body? Or possibly a barred out UE6XAxxxx type serial.