Hi stonfre......welcome to TFF.
That's a beautiful '53 Enfield 3-Band you've got there. And, indeed, it does appear to be refinished/restored, which, unfortunately, pretty much reduces or eliminates it's collector value.
The Model 1853 was used on both sides during the Civil War. Early in the war, the U.S. was very short on rifles and bought a large quantity of them. They were, however, mostly replaced early in the war as the Model 1861 Springfield rifles were manufactured in larger numbers.
The C.S.A., however, had a very small manufacturing base, and imported a great number 1853's and used them (and whatever else they could get), throughout the war.
Ballpark estimate of value: If your Enfield was unrestored/refinished original in "good" antique condition, it might be worth about $1200....if it were U.S. Martially marked, perhaps in the $1500 range.
If it had "genuine" (beware of fakes) C.S.A. markings, it would be worth much
more.....but it would take a "hands-on" evaluation by an expert to properly value it.
As a refinished/restored piece (and I'm really guessing here) I'd say that yours is worth in the $1,000-1,200 range.
In any case, it sure makes a beautiful wallhanger.