I have done a little homework and need help identifying. Looks like golden age rifle, has what I believe is an Eibar(Spain) mark?
Characteristics I believe to have found:
Barrel 40 inches plus tang
56 inches overall
Straight rifled octagon barrel
Iron/ brass sights
Percussion cap
Brass furniture
13/16 barrel
Double set trigger
.40-.45 caliber I believe
Not sure if ram rod is original
1 screw has been replaced on percussion cap
Any help is appreciated, trying to authenticate and find a story if there is one.
If American, why would it have Spanish Mark?