'Z' marking on GRI Lee-Enfield No.1 Mk.3
I recently acquired a GRI Lee-Enfield and noticed the 'z' markings on the receiver and forestock. The seller indicated that the rifle went through a rebuild. I was hoping someone could help me to figure out if the whatever caused 'z' was dealt with in the rebuild and how worried I should be about this. Thanks in advance.
Two relatively poor quality photos of the markings in question...
https://www.milsurps.com/images/impo.../04/rec1-1.jpg
https://www.milsurps.com/images/impo...04/stock-1.jpg