I thought I better get back to you since no one else seems to want to take this on. From what I can see, the parts you've shown are correct for your rifle. The rear sight lock bar has been identified as a T2 and the book shows a T1...but I wouldn't worry about that. I'd like to have time and the rifle in hand to do up a complete sheet on it. Lots of the little parts I can't tell just by looking. The follower has a number on the bottom but it wasn't mentioned. I wouldn't worry about it, I'm willing to accept this rifle as complete and correct as issued, because it really wouldn't have had any time to be diddled with. A man was issued and came forward with a serviceable rifle. He was probably disabled so that he couldn't retain his weapon, to whatever extent and here it is. Someone was either going to use these two as an assist to liberate the country or they just wanted a couple for a rainy day. There would have been lots lying around initially...I don't recall you telling us what shape the barrel was in after all this time. But, looking at the trigger mech inside...?