Henry Goodman of St Louis, Missouri, had a few patents for doiuble barrel guns. Patent No. 212459 for a hammer gun was granted on Feb. 18, 1879. Patent No. 267,876 for a Concealed Hammer Gun was granted Nov. 21, 1882.

Found another. Patent No. 185,912 granted Jan. 2, 1877, looks like it may well be related to the gun in question.

Thomas, That's is an unusual gun to say the least, It might be the only example left! BUY IT! Gary

Dave: Thank you for your research. I would like to find a picture of the gentleman that owned the gun holding this fine shotgun.Thomas

Gary: I'm in the final stages of this quest.Thanks Thomas

What an amazing and interesting gun! Wow! I see, from the wear that the river boat captain used it, and wore off the checkering. So it must work pretty well. Also an interesting research project.

H. Goodman is resting comfortably in my gun display right next to my No. 5 frame 34 inch Parker and W.Richards 8 Ga. I thought that was the least I could do for this 11 1/2 pound unique 12 Ga. I took it out today and fired a couple shells in it and I got to tell you it doesn't kick at all. I will be taking it out this week and see if I can break it in on some waterfowl. Thomas

I want to go:crying:

Paul: You are welcome anytime.It is great weather this time of the year. After living in cold climates all my life it's great to now live in Idaho.Thomas

Thomas, I'll be in seattle on Friday the 16th. Through Saturday the 24th of this month. I'm affraid that is the closest I can get for now.
God bless and good hunting.

Thomas, what an unusual and interesting contraption that is!
How do you pluck the shells out of the chambers?
How difficult is it to cock the hammers by openning the breech? There's not much mechanical advantage there.
The firing pins must be enertial, and spring loaded or it would be difficult to open the breech. (they'd be stuck in the primer indents). I've got more questions but will stop here.
Thanks for sharing!