The ROFM 1941 roll stamp was only used for that year, it was dispensed with to save time. It's a nice addition to any collection. Very nice for your first Enfield!!!!
It would be interesting to see if the barrel is serialed to the rifle. The waisted front sight is an early feature of Long Branches, for sure. The No. I MK VI also had this feature. Nice.
The bolt is very early, as well. Does the serial number on the bolt match the rifle?