Need Help Identifying hammer fire side by side muzzle-loader (no make, model, SN)

[jack54321]

I'm not sure if I am posting this thread on the right forum but I need some help identifying this gun.
I recently got this gun from my grandfather and I have no idea what the make or model is. There are no numbers anywhere on the gun that would correspond to a serial number, the only markings I can find is "Smith" on the grip on each side of the gun and "London" on the rib in between the barrels. I tried Google searching for a while and came up empty, I can't seem to find any hammer fire side by side muzzleloaders that look similar to this one. If anyone could help me with this it would be greatly appreciated. Also, let me know if you need more pictures of the gun than I already attached.

Thanks, Jack

 

[Daveboone]

Gee that looks like a great old shotgun, even complete with its loading rod. I myself have no idea, but zillions of shotguns were imported from Europe/ England under trade names (Knickerbocker among others) very inexpensively, many with no names at all. most make excellent wall hangars.

 

[buck460XVR]

Looks to be maybe a George Smith, London Double. The London barrels were an option.