RARE BROADWELL PATENT BREECHLOADING RIFLE. Cal .577. NSN. 34" part oct. bbl. marked "BROADWELL’S PATENT./1863" on the upper tang and "FERD./FRUWIRTH" in an oval on top of the bbl at the rear. The triggerguard is rotated 180 degrees to lower the vertically sliding breechblock. The rear sling swivel is missing....