Paul,

Manton and Rodda still exist as gun retailers in India under Indian ownership. One of them also owns the P Orr and Sons records. However, if the rifle was originally imported into India, it would definitely be marked with the importer's name. As far as I know, that was mandatory under British law.

I also found a very interesting article on proof marks used in India recently. Apparently, the British administration in India had its own system of proving guns that were imported here without being proven in London or Birmingham. My guess is that this rifle would have been privately sold there, possibly by an American hunter who happened to hunt at some time in the past.

Now, if only the rifle could talk . . .