I realize this might be foreign to you. If you are comfortable with removing the two action screws in the bottom of the stock, and taking a couple of high res pictures (your camera will show a flower symble) we can tell you A LOT more about what you have.
From the picture, it looks a lot like what I have seen in early model 70's, but without seeing it from a couple of angles, or getting a date, I can't tell you what you have.
Perhaps one of the other more experienced members can tell from your pictures.
But, from what I can tell, you can build a hell of a tack driving rifle out of what you have there with a blueprint job, a trigger job, a new barrel and a bedding job.
I dare say, in the right hands with those "upgrades" you would have a rifle that could shoot .5 MOA all day long, provided the shooter had decent to midland skill.