The magazine is so worn, I can't really make out what is stamped on it. I will try and get a good close-up photo of the bolt handle and the magazine markings as soon as I can borrow my father-in-law's camera.

I am inclined to think that this rifle, apart from light bubba'ing (may the miscreant suffer from boils in a very painful place), has not been tampered with or refurbished at any time. If someone can repair the rear sight, I would be VERY interested in knowing a price. As I said, if I can get this rifle restored, then I would be happy. If not, then someone gets a project gun lol.