The Birmingham proof mark might not be such a curiosity. It is unusual but not unheard of that a gun with prelim proofs (seems the law required it before a gun could be put together) and not finished in England. It may have been sent to India or Australia to be finished there.
What is a mystery to me is the color of the wood. It does not seem to be something that would have been used by any British maker. The more I think on it, the more I do think of India and some wood from Asia.
Just thoughts.
Best,
John
