Shelby,
Thank you for posting this. The rifle is a beauty!
It reminds me of a rifle we have in the family. I think Dad said he bought it from Red Farris in the late forties or early fifties for $10-$15. It needed some work, but Dad was a pretty good gunsmith and got it safely shootable, although the bore should be freshed out.
Our rifle is full-stocked in walnut, but the architecture, from the entry pipe to buttplate, is very similar to yours. It has no cheekpiece (I see that your rifle has none, either), and ours has a very similar triggerguard with double finger rests, neatly forged from iron. It is all iron mounted, except for a poured nosecap with some simple open work. If I remember correctly, it is around .44 caliber, and the barrel is about 44" long. It has the name J.J. Pryor neatly stamped on the top flat of the barrel. I believe I recall a rather tall, almost semi-buckhorn rear sight, which I would think unusual for a rifle of this type.
I'm sorry I don't remember the other details clearly, but it has been a number of years since I have handled it. I'll try to get some photos next time I visit the current owner.
Are you familiar with the name J.J. Pryor? I'm sure I've left a few stones unturned, but I've found nothing to date.
Best regards,
Notchy Bob