Someone brought a strange one in the store today!

A regular customer of mine brought a single shot shotgun into the store today. He may have it on line sometime soon.
It had a LONG barrel....12 guage shell fit nice in the chamber....a large fold-over type cover that when shut a huge coach-gun type hammer fell onto the firing pin.

To open this old gun you had to pull up on the firing pin from the outside to move it out of the way so it could open. The reciever was brass and the wood of the gun was OLD.