Howdah Pistol - Double-Barrel Pin-Fire

[dttuner]

It wouldn't be in 577/450 would it? The breech doesn't look big enough but hard to tell from here. Maybe .455 or .476? How long is the chamber? What shape?

How long is the chamber?
- Can you explain what you'd like me to measure for you? Explain like I was a child :P
I only ask because with my limited firearms knowledge, this pistol doesn't seem to have a "chamber."
Just two spots where the rounds are loaded, similar to a couch gun.
I'm surely missing something.

What shape?
- I want to say round, but that seems too obvious.

I can take better/more pictures, and take measurements.
Just tell me exactly what you need, and I'll get it tonight.

Do we have any idea of the manufacturer or origin of this pistol?