Beautiful rifles. The SVT is one of my favorite rifles to shoot. I like shooting it even more than the M1 Garand. Sacrilege I know. I can certainly relate to photos of German soldiers carrying SVTs on the Eastern Front. The marks on the barrel appear to me to be lazer engraved, not period to the rifle. Therefore, that would make me think it is some type of import/export mark or maybe identifying who deactivated it. Thanks for showing.