I also have a 12 ga ring shotgun (the ring breaks open the barrell) like is the photos from CS Shattuck. It belonged to my grandfather, who purchased it when he was a boy. Best guess is the gun is about 100 years old. It doesn't fine any more due to the hammer being broke. That's really all I know about the gun. When I was much younger I used to hunt rabbits with it, however, the gun is not really made for today's shells.