I agree the top rifle is a recent fabrication with new stock, but the second rifle is different. While it obviously has some new parts, i.e. back action lock, it appears to be a cut down [lost outer ramrod and a foot of original forestock and barrel at muzzle end], original southern TN rifle. Note the front side facing originally had a front action lock, now filled, with the modern back action lock added much more recently. The triggers and butt architecture are reminiscent of guns made by Alfred Bearden down in Lincoln Co., TN. Not his work, but some similarities. Brass mounts were used on later percussion guns ca. 1850+ from that area. Shelby Gallien